Crusader Inboard GM Big Block V8 (454XL, 502XL) Exhaust Manifold Exploded View

Sierra
Crusader Inboard GM Big Block V8 (454XL, 502XL) Exhaust Manifold Exploded View
Crusader Inboard Exhaust Manifold Exploded View Diagram and Parts
Fits GM Big Block V8 454 cu. in.
Models 454XL & 502XL
Figure #DescriptionO.E.M. #Sierra #Application
1MANIFOLD98125 18-1982GM Big Block (V8) 454-502 cu.in. (Port & Starboard); Use with Manifold Gasket: 18-0418; Mounting Kit: 18-8544
2MANIFOLD GASKET96653 18-0418Use with Manifold: 18-1982. Included in 18-8544
3HOSE FITTINGN/A 18-44613/4" - 14NPT X 1" Hose (Corrosion Resistant Brass Fitting)
4HOSE FITTING97296; 97854 18-811290 degree fitting. Thread Size: 1" MPT X 1 1/4"
5MOUNTING KITN/A 18-8546Use with 4" Spacer: 18-1984. Includes (2) 18-0475 gasket
6MANIFOLD SPACER98128 18-1984Use with Mounting Kit: 18-8546; Elbow Gasket: 18-0475
7BLACKSTEEL PLUG113186 18-4258Thread Size: 3/4" MPT X 1". Use with Spacer: 18-1984
8ELBOW GASKET (BLOCKED)98127 18-0475Blocked gasket for universal elbow; Use with Riser: 18-1938
9ELBOW GASKET (STAINLESS STEEL PLATE )98124 18-0476Used with Spacer: 18-1984. Requires (2) 18-0475 for each 18-0476.
10MOUNTING BOLTN/ANSSIncluded in 18-8547 mounting kit.
11MOUNTING KITN/A 18-8547Use with Riser: 18-1938. Includes 18-0475 gasket.
12RISER98126 18-1938Use with Manifold: 18-1982; Riser Gasket: 18-0475; Mounting Kit: 18-8547
13MOUNTING HARDWAREN/ANSSIncluded in 18-8544 mounting kit.
14MOUNTING KITN/A 18-8544Use with Manifold: 18-1982. Includes 18-0418 gasket.
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Your Price: $4.93
Save: $2.66
(35% Off $7.59)
Part # 18-0476 ValueShip™ Eligible
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Blocked
Replaces OEM part #
  • BARR 01-0105
Fits:
  • Barr, Indmar & Marine Power Ford Small Block V8 302-351 cu.in.

Used with:
  • Riser: 18-1939
  • Riser: 18-1907
  • Manifold: 18-1898
  • Elbow: 18-1999
Included in 18-8535 mounting kit

Sierra part # 18-0476 riser block gaskets

The gaskets are constructed of a proven hi-temperature composite that does not contain asbestos materials. This gasket material has been designed to handle the high temperatures capable of exceeding 500 degrees Fahrenheit as well as harsh marine environments.

Each Sierra riser block-off gasket ensures the factory matched footprint of exhaust ports. The Typical thickness for these products can range up to 1/16". Be certain to thoroughly clean and remove the entire old gasket. When joining two non-machined surfaces, an exact match is not always possible. It is recommended that you use a thin layer of high-temperature silicone sealer on both sides of gasket prior to installation to create a more perfect reliable seal.
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Part # 18-8112 ValueShip™ Eligible
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For:
Gm Small Block V8 305-350 cu. in. ( Models 220, 270, CM305, CM350XL, CM350HT )
GM Big Block V8 454 cu. in. ( Models: 454XL, 502XL, CH350, 454XL )

Use with:
Manifold: 18-1997-1, 18-1998-1, 18-1892, 18-1983, 18-1929, 18-1933, 18-1925, 18-1926, 18-1898

Replaces OEM part #
  • CRUSADER 97854
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Part # 18-4461 ValueShip™ Eligible
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Replaces OEM part #
  • MERCURY MARINE 22-807155
3/4" - 14 NPT X 1" Hose
Corrosion Resistant Brass Fitting
Your Price: $92.79
Save: $114.17
(55% Off $206.96)
Part # 18-1984 ValueShip™ Eligible
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For: GM Small BLock V8 305-350 cu. in.
GM Big Block V8

Use with:
Mounting Kit: 18-8546

Replaces OEM part #
  • CRUSADER 98128
Your Price: $7.14
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(25% Off $9.61)
Part # 18-0475 ValueShip™ Eligible
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Blocked gasket for universal elbow 18-1999
Used with:
  • Manifold 18-1938
Your Price: $195.83
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Part # 18-1938
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Replaces OEM part #
  • CRUSADER RO29015
  • CRUSADER 98126
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Part # 18-1982
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Port & Starboard

Use:
Exhaust Manifold Gasket 18-0418
Mounting Kit 18-8544

For: GM Big Block V-8 454-502 ci

Replaces OEM part #
  • CRUSADER 98125
Your Price: $19.68
Save: $2.48
(11% Off $22.16)
Part # 18-8547 ValueShip™ Eligible
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For:
  • GM SB V8 305-350 cu. in.
  • GM BB V 454 cu. in.
Used with:
  • Riser: 18-1938
Your Price: $3.42
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Part # 18-4258 ValueShip™ Eligible
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Thread Size 3/4"
Blacksteel Plug
18-9004 - Pipe Sealant with Teflon is recommended for use on plug threads
Use with Manifold Spacer: 18-1949

Replaces OEM part #
  • MERCURY MARINE 22-41622
  • MERCURY MARINE 22-33198A1
Your Price: $9.49
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Part # 18-0418 ValueShip™ Eligible
Replaces OEM part #
  • CRUSADER 96653
  • BARR CHVA-47-0000
  • GM 3852472
  • MERCURY MARINE 27-46820
  • OMC 909613
  • VOLVO 3852472
Used with:
    Manifolds: 18-1957-1, 18-1982, 18-1929, 18-1933, 18-1898
Included in 18-8532 mounting kit
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Part # T-20985 ValueShip™ Eligible
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Mercruiser Spacer, 6" center riser.


Replaces OEM #:

  • Mercruiser # 93322

Engine Type:
GM V6 229 and 262 cu.in.GM Small Block V8 305-350 cu.in.GM Big Block V8 454 cu.in.


Engine Model:
185 and 205200, 228, 230, 260 and 898330, 340 and 7.4L


Fits H2O Manifolds: T-20952/ T-20953/ T-20957.