Mercruiser Premium Spark Plug Wire Kits

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Spark Plug Wire Set

Mallory Plug Wire Set

All4Digital18-8811-1 9-28004
120(153 CID)4Conventional18-8800-1 9-28020
140(181 CID)4Conventional18-8800-1 9-28020
150L6Conventional18-8809-1 9-28017
160L6Conventional18-8809-1 9-28017
165L6Conventional18-8809-1 9-28017
185 CIDV6Conventional18-8801-1 9-28015
198 GM8Conventional18-8803-2 9-28000
224 CID4Conventional18-8808-2 9-28014
225 FORD8Conventional18-8803-2 9-28000
225 GM8Conventional18-8803-2 9-28000
228 GM8Conventional18-8803-2 9-28000
229 CIDV6Conventional18-8801-1 9-28015
233 FORD8Conventional18-8803-2 9-28000
250 GM8Conventional18-8803-2 9-28000
255 FORD8Conventional18-8803-2 9-28000
260 GM8Conventional18-8803-2 9-28000
260 TR8Thunderbolt18-8804-1 9-28001
262 CIDV6Thunderbolt18-8810-1 9-28016
280 GM8Conventional18-8803-2 9-28000
305 CID LH8Thunderbolt18-8804-1 9-28001
305 CID RH8Thunderbolt18-8804-1 9-28001
320 EFI8Thunderbolt18-8804-1 9-28001
3308Conventional18-8803-2 9-28000
330 TR8Thunderbolt18-8804-1 9-28001
350 CID LH8Thunderbolt18-8804-1 9-28001
350 CID RH8Thunderbolt18-8804-1 9-28001
350 MAG8Thunderbolt18-8804-1 9-28001
350 MAG Ski8Thunderbolt18-8821-1 -
350 MAG Bravo MPI & Gen +8Delco HEI18-8836-1 -
350 MAG MPI MIE (Gen +)8Delco HEI18-8832-1 -
350 MAG MPI MIE (Gen +)8Mercury HEI18-8834-1 -
350 MAG EFI Ski8Delco HEI18-8832-1 -
350 MAG MPI Ski (Gen +)8Delco HEI18-8836-1 -
350 Black Scorpion Ski (Gen +)8Delco HEI18-8832-1 -
3708Conventional18-8803-2 9-28000
4008Conventional18-8803-2 9-28000
4208Thunderbolt18-8804-1 9-28001
4408Conventional18-8803-2 9-28000
454 CID8Thunderbolt18-8804-1 9-28001
454 MAG8Thunderbolt18-8804-1 9-28001
454 EFI, MAG MPI & Horizon MIE8Delco HEI18-8832-1 -
454 Hi Performance8Thunderbolt18-8824-1 -
4548Thunderbolt18-8824-1 -
4608Conventional18-8803-2 9-28000
4968Distributorless18-8838-1 -
502 MAG8Delco HEI18-8832-1 -
502 EFI & MAG MPI8Delco HEI18-8832-1 -
888 FORD8Conventional18-8803-2 9-28012
898 GM8Conventional18-8803-2 9-28000
2.5L4Conventional18-8800-1 9-28020
3.0L4Conventional18-8800-1 9-28020
3.0LX4Delco EST18-8833-1 -
3.7L4Conventional18-8808-2 9-28014
3.7XL4Conventional18-8808-2 9-28014
4.3LV6Thunderbolt18-8810-1 9-28016
4.3XLV6Thunderbolt18-8810-1 9-28016
4.3L EFI(TBI)V6Delco HEI18-8835-1 -
4.3L MPIV6Delco HEI18-8829-1 -
5.0L8Thunderbolt18-8804-1 9-28001
5.0L IB8Thunderbolt18-8804-1 9-28001
5.0LX8Thunderbolt18-8804-1 9-28001
5.0L Alpha & Bravo(Gen +)8Thunderbolt18-8821-1 -
5.0L MIE MPI8Delco HEI18-8828-1 -
5.7L8Thunderbolt18-8804-1 9-28001
5.7L IB8Thunderbolt18-8804-1 9-28001
5.7L SKI8Conventional18-8802-1 9-28003
5.7 Alpha/Bravo8Thunderbolt18-8821-1 -
7.4L8Thunderbolt18-8804-1 9-28001
7.4L IB8Thunderbolt18-8804-1 9-28001
8.1L8Distributorless18-8838-1 -

CID/ Liter/ Model#

Cyl.

Ignition Type

Spark Plug Wire Set

Mallory Plug Wire Set

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Blowout
Save 21%-24% Off.
Spark Plug Wire Lead Kit - Sierra
Your Price: $32.99
Save: $5.66
(14% Off $38.65)
Part # 18-8800-1
Lead Wire Kit
Electrical System
Premium Marine Spark Plug Wires - Sierra
Your Price: $48.99
Save: $7.59
(13% Off $56.58)
Part # 18-8801-1
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Lead Wire Kit
Electrical System
For: 262/4.3L w/conventional ignition
Premium Spark Plug Wire Leads Kit - Sierra
Your Price: $44.99
Save: $7.13
(13% Off $52.12)
Part # 18-8802-1
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Premium Spark Plug Wire Kit - Sierra
Your Price: $43.99
Save: $9.18
(17% Off $53.17)
Part # 18-8803-2
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For: 502/8.2L with conventional ignition
Premium Spark Plug Wire Set - Sierra
Your Price: $47.99
Save: $11.43
(19% Off $59.42)
Part # 18-8804-1
Lead Wire Kit - Sierra
Your Price: $42.99
Save: $6.40
(12% Off $49.39)
Part # 18-8808-2
Premium Spark Plug Wire Set - Sierra
Your Price: $51.99
Save: $9.46
(15% Off $61.45)
Part # 18-8809-1
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Lead Wire Kit
Electrical System
Premium Marine Spark Plug Wire Set - Sierra
Your Price: $41.99
Save: $6.39
(13% Off $48.38)
Part # 18-8810-1
Lead Wire Kit
Electrical System
For: 262/4.3L with EST or EFI ignition
Premium Spark Plug Wire Set - Sierra
Your Price: $40.99
Save: $6.23
(13% Off $47.22)
Part # 18-8811-1
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Lead Wire Kit
Electrical System
Spark Plug Wire Set - Sierra
Your Price: $57.99
Save: $9.26
(13% Off $67.25)
Part # 18-8821-1
Replaces OEM part #
  • MERCURY MARINE 84-813720A3
  • MERCURY MARINE 84-813720A4
  • MERCURY MARINE 84-816761A4
  • MERCURY MARINE 84-816761Q17
  • MERCURY MARINE 84-816761Q3
  • MERCURY MARINE 84-816761Q4
  • MERCURY MARINE 84-816761Q4
  • MERCURY MARINE 84-813720Q3
  • MERCURY MARINE 84-813720Q4
  • MERCURY MARINE 84-813720A3
  • MERCURY MARINE 84-813720A4
  • MERCURY MARINE 84-816761A4
  • MERCURY MARINE 84-816761Q17
  • MERCURY MARINE 84-816761Q3
  • MERCURY MARINE 84-816761Q4
  • MERCURY MARINE 84-816761Q4
Premium Spark Plug Wire Set - Sierra
Your Price: $94.99
Save: $15.65
(14% Off $110.64)
Part # 18-8828-1
Replaces OEM part #
  • MERCURY MARINE 84-863656A1
  • MERCURY MARINE 84-863656A1
Premium Spark Plug Wire Set - Sierra
Your Price: $96.99
Save: $18.41
(15% Off $115.40)
Part # 18-8829-1
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Replaces OEM part #
  • MERCURY MARINE 84-863656A2
Spark Plug Wire Set - Sierra
Your Price: $65.99
Save: $11.88
(15% Off $77.87)
Part # 18-8830-1
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Replaces OEM part #
  • MERCURY MARINE 84-816608Q80
Premium Spark Plug Wire Set - Sierra
Your Price: $61.99
Save: $9.93
(13% Off $71.92)
Part # 18-8832-1
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Replaces OEM part #
  • MERCURY MARINE 84-816608K68
  • MERCURY MARINE 84-816608K68
Premium Spark Plug Wire Set - Sierra
Your Price: $37.99
Save: $7.37
(16% Off $45.36)
Part # 18-8833-1
Replaces OEM part #
  • MERCURY MARINE 84-816761K14
  • MERCURY MARINE 84-916761K14
  • MERCURY MARINE 84-816761K14
  • MERCURY MARINE 84-916761K14
Premium Spark Plug Wire Set - Sierra
Your Price: $66.99
Save: $11.49
(14% Off $78.48)
Part # 18-8834-1
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Replaces OEM part #
  • MERCURY MARINE 84-816608Q83
  • MERCURY MARINE 84-816608Q83
Premium Spark Plug Wire Set - Sierra
Your Price: $59.99
Part # 18-8835-1
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Replaces OEM part #
  • MERCURY MARINE 84-816608Q82
  • MERCURY MARINE 84-816608Q82
Premium Spark Plug Wire Set - Sierra
Your Price: $66.99
Save: $11.38
(14% Off $78.37)
Part # 18-8836-1
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Replaces OEM part #
  • MERCURY MARINE 84-816608Q71
  • MERCURY MARINE 84-816608Q71
Premium Spark Plug Wire Set - Sierra
Your Price: $452.99
Save: $117.93
(20% Off $570.92)
Part # 18-8838-1
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Replaces OEM part #
  • MERCURY MARINE 84-881698
For: 496/8.1L with distributorless ignition systems
Premium Spark Plug Wire Kit - Sierra
Your Price: $66.99
Save: $10.93
(14% Off $77.92)
Part # 18-8824-1
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Replaces OEM part #
  • MERCURY MARINE 84-816608Q78
For: 502/8.2L with XL series ignition
Mallory Plug Wire Set 9-28020
Spring Sale Price: $29.69
Save: $8.96
(23% Off $38.65)
Part # 9-28020
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Replaces Original Equipment Manufacturer(OEM):Merc / OMC
Replaces Original Equipment Manufacturer # (OEM #):84-816761Q5 / 84-813720A5 / 503748
Fits Application:4 cyl.
(representative photo)
Mallory Plug Wire Set 9-28017
Spring Sale Price: $46.79
Save: $14.66
(23% Off $61.45)
Part # 9-28017
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Replaces Original Equipment Manufacturer(OEM):Chriscraft, Crusader, Mercruiser,OMC
Replaces Original Equipment Manufacturer # (OEM #):84-813720A8
Fits Application:Inline 6 cyl
Plug Wire Set 9-28015 - Mallory
Spring Sale Price: $44.09
Save: $12.49
(22% Off $56.58)
Part # 9-28015
Replaces Original Equipment Manufacturer(OEM):Crusader. OMC, PCM,
Replaces Original Equipment Manufacturer # (OEM #):N/A
Fits Application:V-6
Mallory Plug Wire Set 9-28014
Spring Sale Price: $38.69
Save: $10.70
(21% Off $49.39)
Part # 9-28014
Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):84-813720A6
Fits Application:4 cyl
(representative photo)
Mallory Plug Wire Set 9-28004
Spring Sale Price: $36.89
Save: $10.33
(21% Off $47.22)
Part # 9-28004
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):N/A
Fits Application:4 cyl. Digital
Mallory Plug Wire Set 9-28003
Spring Sale Price: $40.49
Save: $11.63
(22% Off $52.12)
Part # 9-28003
Hurry! Only 1 left in stock
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Replaces Original Equipment Manufacturer(OEM):Merc / OMC
Replaces Original Equipment Manufacturer # (OEM #):84-816761Q12 / 84-813720A12 / 503755
Fits Application:8 cyl.
Mallory Plug Wire Set 9-28002
Spring Sale Price: $46.79
Save: $13.16
(21% Off $59.95)
Part # 9-28002
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):84-816761Q4
Fits Application:V-8 454-572 w/ Thunderbolt & 90 deg. Plug Boots
Mallory Plug Wire Set 9-28001
Spring Sale Price: $45.89 (Out of stock)
Save: $13.53
(22% Off $59.42)
Part # 9-28001
Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):84-816761Q4
Fits Application:V-8 305/350 (LH) 1981-95 w/ Thunderbolt IV
(representative photo)
Mallory Plug Wire Set 9-28000
Spring Sale Price: $41.39 (Out of stock)
Save: $11.78
(22% Off $53.17)
Part # 9-28000
Replaces Original Equipment Manufacturer(OEM):Merc / OMC / Volvo
Replaces Original Equipment Manufacturer # (OEM #):84-816761Q10 / 84-813720A10 / 503752
Fits Application:V-8 454/482 1977-85 w/points and 1961-81 w/Thunderbolt Ign.
Mallory Plug Wire Set 9-28011
Spring Sale Price: $55.79
Save: $16.13
(22% Off $71.92)
Part # 9-28011
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Fits Application:8 cyl. Delco HEI
(representative photo)
Mallory Plug Wire Set 9-28024
Spring Sale Price: $59.39
Save: $18.48
(23% Off $77.87)
Part # 9-28024
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):84-816608A80
Fits Application:5.7L MIE & Ski 1998- newer
(representative photo)
Mallory Plug Wire Set 9-28032
Spring Sale Price: $44.09
Save: $12.49
(22% Off $56.58)
Part # 9-28032
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Replaces Original Equipment Manufacturer(OEM):Mercruiser, Crusader, OMC, Volvo
Replaces Original Equipment Manufacturer # (OEM #):84-813720A7 / N/A / 503750
Fits Application:V-6 229 3.8L
(representative photo)
Mallory Plug Wire Set 9-28033
Spring Sale Price: $53.99
Save: $15.36
(22% Off $69.35)
Part # 9-28033
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):N/A
Fits Application:V-8 396-572cid w/ 180 deg. Plug boots
(representative photo)
Mallory Spark Plug Wire Set 9-28056
Spring Sale Price: $34.19
Save: $11.17
(24% Off $45.36)
Part # 9-28056
Hurry! Only 1 left in stock
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):84-816761Q14
Fits Application:3.0L/LX 1990 & newer w/Delco EST ignition
Mallory Plug Wire Set 9-28012
Spring Sale Price: $50.39
Save: $14.89
(22% Off $65.28)
Part # 9-28012
Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):84-813720A9
Fits Application:8 cyl.
(representative photo)
Mallory Plug Wire Set 9-28023
Spring Sale Price: $57.59
Part # 9-28023
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):84-816608A82
Fits Application:V-6 w/ Delco HEI
(representative photo)
Mallory Plug Wire Set 9-28044
Spring Sale Price: $55.79
Save: $15.60
(21% Off $71.39)
Part # 9-28044
Hurry! Only 1 left in stock
Replaces Original Equipment Manufacturer(OEM):Ford Marine, Mercruiser
Fits Application:V-8 302,351,460 w/135 deg. Plug boots
Sierra
Replacement Spark Plug Wire Kits For Mercruiser
Average Customer Review for Spark Plug Wire Lead Kit - Sierra
Based On 9 Reviews
Review for Sierra 18-8800 Wire Lead Kit by a CustomerJune 23, 2009
Well what can I say other then they look good... The coil wire rubber on the coil is rather small and hard to get on the coil....
(1 of 1 people found this review helpful)
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Great product by David - Thunder Bay, OntarioAugust 21, 2013
great product
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Wires by Christopher - Oconomowoc, WisconsinMay 27, 2013
They are not like what is pictured here, but they work fine.
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overall very good product by Robert - Nashville, TennesseeSeptember 24, 2012
Product arrived and was as advertised. Overall very good quality. Good solid connection to spark plugs. Coil wire was hard to make stay on center post of distributor cap. Otherwise I would give it a 5. Would definitely buy again.
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Spark Plug Wire Set - Mercruiser 120 by Jason - Trenton, OntarioJuly 08, 2012
I have been using these wires now for the past month, about 40 hours or so and they seem to work great. No problems with miss fires, they snap on easily and hold tight to distributor and spark plugs as they were designed. If I had to change anything it would be the lengths. The set I replaced had better lengths for each plug, especially the shorter ones, which could be a bit shorter. I suppose they're designed for a variety of different engines as well, one size fits most. It's not a deal breaker at all. Very satisfied nevertheless. I will be using the same wires again for any replacements I do in the future.
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Average Customer Review for Premium Spark Plug Wire Set - Sierra
Based On 1 Review
Wrong product by Michael - Daphne, AlabamaJune 24, 2011
The quality of the product looks fine, but it is just the wrong product, need to return. I was listed for my application and so was the distributor cap, but this plug wire set is not capatible with the cap that I purchased.
(1 of 2 people found this review helpful)
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Average Customer Review for Lead Wire Kit - Sierra
Based On 1 Review
An improvement to performance by Jami - Gulf Breeze, FloridaSeptember 29, 2011
I replaced a pretty worn out set of OEM wires on my 470, thinking I wasn't going to see an improvement. Was I wrong. The engine jumps to life instantly, as opposed to taking several revolutions. They fit fine, too. The distributor side of the spark plug wires are 90s but the picture shows straight. It's not that the 90 degree boots won't work, but the OEM are straight and it is just a tidier installation. Also, the the boot for the coil isn't big enough.
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Based On 1 Review
plug wire set by John - Eagle River, WisconsinJuly 25, 2011
fair price, right parts
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Average Customer Review for Spark Plug Wire Set - Sierra
Based On 1 Review
Heavy duty by John - Littlerock, CaliforniaOctober 02, 2013
These ign. wires look and feel much better than stock. Great buy.
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Average Customer Review for Premium Spark Plug Wire Set - Sierra
Based On 1 Review
Missing Wire by John - Shippensburg, PennsylvaniaApril 25, 2012
Product arrived in good condition, but was missing an intermediate length wire. iboats never returned message for a corrected package. All seven other wires and distributor wire were what was expected, but can't hadly think a complete tune-up is 7 of 8 wires.
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Average Customer Review for Premium Spark Plug Wire Set - Sierra
Based On 1 Review
Worked Great by Todd - Rutledge, TennesseeAugust 24, 2012
The lighter colors make it easy to check for wear or other problems. Produce a hot fire.
(1 of 1 people found this review helpful)
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Average Customer Review for Plug Wire Set 9-28015 - Mallory
Based On 1 Review
Perfect by Chris - Pinckney, MichiganAugust 13, 2012
These wires fit perfectly. All the lengths were correct which made installation a breeze. I have purchased other branded wire sets and that was not the case. This is an outstanding, well built and engineered product.
(1 of 1 people found this review helpful)
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Average Customer Review for Mallory Plug Wire Set 9-28014
Based On 1 Review
merc. 224 cid/165 hp 4 cyl. by Siah - Morehead, KentuckyApril 25, 2013
this is by far the finest quality set of spark plug wires i have used. if anyone needs a set of plug wires give these a try,you won`t be disappointed.
(1 of 1 people found this review helpful)
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Average Customer Review for Mallory Plug Wire Set 9-28001
Based On 6 Reviews
I'm wired by Frank - Keswick, OntarioSeptember 18, 2013
Worked like they should - all tuned up!
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Fit well by Kenneth - Patterson, New YorkAugust 04, 2013
Even though it was basckordered it was still cheaper than getting it locally.
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Plug wires by Tom - Oshkosh, WisconsinJuly 26, 2013
Great product and quality of the product. All wires fit perfectly in diameter and length. Would definitely purchase again.
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Worked Great by Robert - Marietta, GeorgiaMay 03, 2013
As described.. worked perfect
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Excellent by James - Grand Rapids, MichiganMay 30, 2012
Great service. Great Price
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Average Customer Review for Mallory Plug Wire Set 9-28000
Based On 1 Review
wrong set by Shay - Columbus, GeorgiaMay 13, 2012
this is the part number called out for on the website. it did not fit. I boats was great about getting me in touch with the factory rep and getting the correct set. I boats was great about getting the old set back and a credit issued.
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Average Customer Review for Mallory Plug Wire Set 9-28012
Based On 2 Reviews
Good by Zach - West Valley, UtahSeptember 07, 2012
These wires worked fine on my engine. I think they're actually universal and not specific because the wires were longer than my original ones. They look cool. They're blue.
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plug wire by Shay - Columbus, GeorgiaMay 13, 2012
Everything was great. Wires fit great, look, good, and worked great.
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Average Customer Review for Mallory Plug Wire Set 9-28044
Based On 1 Review
High Quality Plugwires by Christopher - Rochester, New YorkAugust 13, 2013
I bought these for my 1968 Chris-Craft Roamer with twin Ford 427 V8 engines. They fit perfectly and I think they make a difference over the old wires. I bought the angled boot ones, but I think the straight boot ones would work just as well.
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Great Boating Days are Ahead!
Enjoy Extra Discounts 5-20% Off During the SPRING SAVINGS SALE!
Great Boating Days are Ahead!
Enjoy Extra Discounts 5-20% Off During the SPRING SAVINGS SALE!