Home / Shop / Chevrolet Performance LS Rear Main Seal Housings 12639250 Housing, Aluminum, Natural, Chevy, Small Block LS, Each

Chevrolet Performance LS Rear Main Seal Housings 12639250 Housing, Aluminum, Natural, Chevy, Small Block LS, Each

SKU: NAL12639250

Rear Main Seal Housings

Chevrolet Performance

Chevrolet Performance LS Rear Main Seal Housings 12639250 Housing, Aluminum, Natural, Chevy, Small Block LS, Each

SKU: NAL12639250

Rear Main Seal Housings

Sale ends in Calculating... Wed 14 Oct, 12:46 am AEST

IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.

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Description

IMPORTANT NOTICE: Will not fit LSX blocks.

Chevrolet Performance LS rear main seal housings are designed to fit all LS model engines. They are manufactured from durable aluminum and are ideal for replacing damaged housings or building a new project from scratch.

Part Type

Rear Block Cover LS

Data: v4.2 - Upd: 2026-10-13 09:41:16

Specifications

Product Attributes - Brand: Chevrolet Performance
Product Attributes - Manufacturer's Part Number: 12639250
Product Attributes - Part Type: Rear Main Seal Housings
Product Attributes - Product Line: Chevrolet Performance LS Rear Main Seal Housings
Product Attributes - UPC: 00195491151208
Product Attributes - Housing Material: Aluminum
Product Attributes - Housing Finish: Natural
Product Attributes - Rear Main Seal Included: Yes
Product Attributes - Gaskets Included: Yes
Product Attributes - Hardware Included: Yes
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: Will not fit LSX blocks.

Reference Information

Brand Name/s	Chevrolet Performance
StreetFX SKU	nal12639250
SFX Item ID	5065146
Supplier Item Code	5065146
Manufacturer SKU	12639250
Manufacturer UPC	N/A
Alternative References	GMP12639250

Compatibility

Application Data

Make	BUICK
Model	LACROSSE
Submodel	SUPER
Beginning Year	2008
Ending Year	2009
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	C
Application Notes	LS4; C; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|
Region	USA

Make	BUICK
Model	RAINIER
Submodel	CXL
Beginning Year	2004
Ending Year	2004
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	P
Application Notes	LM4; P; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|
Region	USA

Make	BUICK
Model	RAINIER
Submodel	CXL
Beginning Year	2005
Ending Year	2007
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	M
Application Notes	LH6; M; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|; INCLS BOLT,HOUSING,SEAL,GASKET
Region	USA

Make	BUICK
Model	RAINIER
Submodel	CXL PLUS
Beginning Year	2004
Ending Year	2004
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	P
Application Notes	LM4; P; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|
Region	USA

Make	BUICK
Model	RAINIER
Submodel	CXL PLUS
Beginning Year	2005
Ending Year	2005
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	M
Application Notes	LH6; M; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|; INCLS BOLT,HOUSING,SEAL,GASKET
Region	USA

Make CADILLAC
Model CTS
Submodel V
Beginning Year 2004
Ending Year 2005
Engine Type V8
Liter 5.7
CID 346
Engine Size 5.7L/346
Engine Family Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code S
Region USA

Make	CADILLAC
Model	CTS
Submodel	V
Beginning Year	2009
Ending Year	2014
Engine Type	V8
Liter	6.2
CID	376
CC	6162
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	P
Application Notes	LSA; P; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|
Region	USA

Make	CADILLAC
Model	CTS
Submodel	V
Beginning Year	2015
Ending Year	2015
Engine Type	V8
Liter	6.2
CID	376
CC	6162
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Engine VIN Code	P
Application Notes	LSA; P; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|
Region	USA

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2002
Ending Year	2002
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	T
Application Notes	RWD; LM7; T; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|
Region	USA

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2002
Ending Year	2002
Engine Type	V8
Liter	6.0
CID	364
CC	5967
Engine Size	6.0L/364
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	N
Application Notes	AWD; LQ9; N; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|
Region	USA

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2003
Ending Year	2005
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	T
Application Notes	LM7; T; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|
Region	USA

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2003
Ending Year	2005
Engine Type	V8
Liter	6.0
CID	364
CC	5967
Engine Size	6.0L/364
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	N
Application Notes	LQ9; N; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|
Region	USA

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2009
Ending Year	2009
Engine Type	V8
Liter	6.2
CID	376
CC	6162
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	2
Application Notes	L9H; 2; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|; INCLS BOLT,SEAL,GASKET,HOUSING
Region	USA

Make	CADILLAC
Model	ESCALADE
Submodel	HYBRID
Beginning Year	2009
Ending Year	2009
Engine Type	V8
Liter	6.0
CID	364
CC	5967
Engine Size	6.0L/364
Engine Family	GM Gas/Electric hybrid V8
Engine VIN Code	5
Application Notes	LFA; 5; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|; INCLS BOLT,SEAL,GASKET,HOUSING
Region	USA

Make	CADILLAC
Model	ESCALADE
Submodel	PLATINUM
Beginning Year	2009
Ending Year	2009
Engine Type	V8
Liter	6.2
CID	376
CC	6162
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	2
Application Notes	L9H; 2; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|; INCLS BOLT,SEAL,GASKET,HOUSING
Region	USA

Make CHEVROLET
Beginning Year 1997
Ending Year 2007
Engine Type V8
Engine Size 5.7L/350
Engine Family Chevy small block Gen III/IV (LS-based engines)
Application Notes Will not fit LSX blocks.
Make CHEVROLET
Beginning Year 1999
Ending Year 2014
Engine Type V8
Engine Size 5.3L/325
Engine Family Chevy small block Gen III/IV (LS-based engines)
Application Notes Will not fit LSX blocks.
Make CHEVROLET
Beginning Year 1999
Ending Year 2017
Engine Type V8
Engine Size 4.8L/294
Engine Family Chevy small block Gen III/IV (LS-based engines)
Application Notes Will not fit LSX blocks.
Make CHEVROLET
Beginning Year 1999
Ending Year 2019
Engine Type V8
Engine Size 6.0L/364
Engine Family Chevy small block Gen III/IV (LS-based engines)
Application Notes Will not fit LSX blocks.
Make CHEVROLET
Beginning Year 2006
Ending Year 2015
Engine Type V8
Engine Size 7.0L/427
Engine Family Chevy small block Gen III/IV (LS-based engines)
Application Notes Will not fit LSX blocks.
Make CHEVROLET
Beginning Year 2008
Ending Year 2017
Engine Type V8
Engine Size 6.2L/376
Engine Family Chevy small block Gen III/IV (LS-based engines)
Application Notes Will not fit LSX blocks.

Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	BASE
Beginning Year	2005
Ending Year	2005
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	Z
Application Notes	L59; Z; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|
Region	USA

Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	BASE
Beginning Year	2005
Ending Year	2005
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	T
Application Notes	LM7; T; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|
Region	USA

Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LS
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	Z
Application Notes	L59; Z; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|
Region	USA

Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LS
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Engine VIN Code	T
Application Notes	LM7; T; \|\|Reman=No\|US ACD=Y\|Can ACD=Y\|
Region	USA

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Chevrolet Performance LS Rear Main Seal Housings 12639250 Housing, Aluminum, Natural, Chevy, Small Block LS, Each

Chevrolet Performance LS Rear Main Seal Housings 12639250 Housing, Aluminum, Natural, Chevy, Small Block LS, Each

Description

Part Type

Specifications

Reference Information

Compatibility

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