2010+ 1981 GMC K1500 Engine & Drivetrain Sierra Classic Parts - Page 90

Sierra Classic · Engine & Drivetrain (2,009 products)

Exact-fit parts for the 1981 GMC K1500 Sierra Classic.

FTI 9.5in GM Street Racer Series Converters Sprague Type - 3800 Hard Hit Stall

FTI Performance

Part # SR7082

Confirmed Fit

FTI 9.5in GM Street Racer Series Converters Sprague Type - 3800 Hard Hit Stall

$836.67

Mahle Rings Buick 301350L Eng 77-79 Checker 327350 Eng 69-79 Chevy Plain Ring Set

Mahle OE

Part # 50564CP.030

Confirmed Fit

Mahle Rings Buick 301350L Eng 77-79 Checker 327350 Eng 69-79 Chevy Plain Ring Set

$54.31

Mahle OE

Part # 50564CP.080

Confirmed Fit

Mahle Rings Buick 301350L Eng 77-79 Checker 327350 Eng 69-79 Chevy Plain Ring Set

$52.04

Clevite

Part # CB663VN10

Confirmed Fit

Clevite Chevy V8 305-350-400 1967-98 Con Rod Bearing Set

$29.24

Clevite

Part # CB1776A30(8)

Confirmed Fit

Clevite Chevrolet V8 262-265-267-294-305-307-325-346-350-365-400 1967-03 Con Rod Bearing Set

$34.92

King Engine Bearings

Part # CS507HP

Confirmed Fit

King Engine Bearings GM 4.3/4.4/5.0/5.4/5.7L V8 Performance Cam Bearing Set

$89.09

Hellwig

Part # 25250

Confirmed Fit

Hellwig 11-22 Ram 3500 Hardware Kit for Load Pro Multi Leaf 2500lb/3500lb Helper Springs

$178.90

King Engine Bearings

Part # CR807HPNSTDX

Confirmed Fit

King Engine Bearings Chevy LS1 / LS6 / LS3 (Size STDX) Performance Rod Bearing Set

$96.97

McLeod Hyd T.O. Bearing Slip W/Adjustable Screw Gen Iv Chrysler 1.250in Collar

McLeod Racing

Part # 1406-10

Confirmed Fit

McLeod Hyd T.O. Bearing Slip W/Adjustable Screw Gen Iv Chrysler 1.250in Collar

$429.76

Cometic GM Dart/Brodix Small Block V8 .070in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket

Cometic Gasket

Part # C5215-070

Confirmed Fit

Cometic GM Dart/Brodix Small Block V8 .070in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket

$141.79

Mahle Rings Buick 305 5.0L Eng 77-91 Checker 305 5.0L Eng 78-80 Chevy Moly Ring Set

Mahle OE

Part # 41137CP.040

Confirmed Fit

Mahle Rings Buick 305 5.0L Eng 77-91 Checker 305 5.0L Eng 78-80 Chevy Moly Ring Set

$78.68

King Engine Bearings

Part # CR807HPN010

Confirmed Fit

King Engine Bearings Chevy LS1 / LS6 / LS3 (Size 010) Performance Rod Bearing Set

$96.97

Mahle OE

Part # 2242694030

Confirmed Fit

Mahle OE GM 350 Same as 2243556 (Except 8 Pack) .030 Piston Set (Set of 8)

$150.72

King General Motors 262/267/302/307.010in Undersize Crankshaft XP-Series Main Bearing Set (Set of 5)

King Engine Bearings

Part # MB557XP010X

Confirmed Fit

King General Motors 262/267/302/307.010in Undersize Crankshaft XP-Series Main Bearing Set (Set of 5)

$116.38

Mahle OE

Part # 50564CP.060

Confirmed Fit

Mahle Rings Buick 301350L Eng 77-79 Checker 327350 Eng 69-79 Chevy Plain Ring Set

$46.68

NGK Checker Marathon 1979-1978 Spark Plug Wire Set

NGK

Part # 51333

Confirmed Fit

NGK Checker Marathon 1979-1978 Spark Plug Wire Set

$33.89

Cometic Chevrolet Gen-1 Small Block V8 .188in Fiber Valve Cover Gasket - Splayed Valve Heads

Cometic Gasket

Part # C5390

Confirmed Fit

Cometic Chevrolet Gen-1 Small Block V8 .188in Fiber Valve Cover Gasket - Splayed Valve Heads

$33.61

Cometic Chevrolet Gen-1 Small Block V8 .060in MLS Cylinder Head Gasket - 4.125in Bore

Cometic Gasket

Part # C5400-060

Confirmed Fit

Cometic Chevrolet Gen-1 Small Block V8 .060in MLS Cylinder Head Gasket - 4.125in Bore

$131.62

King Engine Bearings

Part # CR807XPN010X

Confirmed Fit

King Engine Bearings Chevy LS1 / LS6 / LS3 (Size 010X) Performance Rod Bearing Set

$117.47

MAHLE Original Buick Apollo 75-73 Oil Pan Set

Victor Reinz

Part # OS30988X

Confirmed Fit

MAHLE Original Buick Apollo 75-73 Oil Pan Set

$33.73

Frequently Asked Questions

Do these parts fit my 1981 GMC K1500 Sierra Classic?

This page groups parts listed for the 1981 GMC K1500 Sierra Classic. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.

What engine & drivetrain options are available for my 1981 GMC K1500 Sierra Classic?

We offer a wide selection of engine & drivetrain parts for the 1981 GMC K1500 Sierra Classic. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.

What brands make parts for the 1981 GMC K1500 Sierra Classic?

We carry parts from trusted brands including COMP Cams, Cometic Gasket, Yukon Gear & Axle, Edelbrock, and Clevite, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 1981 GMC K1500 Sierra Classic parts ship?

Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.

What warranty do your 1981 GMC K1500 Sierra Classic parts come with?

Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.

1981 GMC K1500(3,993 parts)

1981 GMC K1500(3,993 parts)

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Other GMC K1500 Years

Sierra Classic · Engine & Drivetrain (2,009 products)

FTI 9.5in GM Street Racer Series Converters Sprague Type - 3800 Hard Hit Stall

Mahle Rings Buick 301350L Eng 77-79 Checker 327350 Eng 69-79 Chevy Plain Ring Set

Mahle Rings Buick 301350L Eng 77-79 Checker 327350 Eng 69-79 Chevy Plain Ring Set

Clevite Chevy V8 305-350-400 1967-98 Con Rod Bearing Set

Clevite Chevrolet V8 262-265-267-294-305-307-325-346-350-365-400 1967-03 Con Rod Bearing Set

King Engine Bearings GM 4.3/4.4/5.0/5.4/5.7L V8 Performance Cam Bearing Set

Hellwig 11-22 Ram 3500 Hardware Kit for Load Pro Multi Leaf 2500lb/3500lb Helper Springs

King Engine Bearings Chevy LS1 / LS6 / LS3 (Size STDX) Performance Rod Bearing Set

McLeod Hyd T.O. Bearing Slip W/Adjustable Screw Gen Iv Chrysler 1.250in Collar

Cometic GM Dart/Brodix Small Block V8 .070in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket

Mahle Rings Buick 305 5.0L Eng 77-91 Checker 305 5.0L Eng 78-80 Chevy Moly Ring Set

King Engine Bearings Chevy LS1 / LS6 / LS3 (Size 010) Performance Rod Bearing Set

Mahle OE GM 350 Same as 2243556 (Except 8 Pack) .030 Piston Set (Set of 8)

King General Motors 262/267/302/307.010in Undersize Crankshaft XP-Series Main Bearing Set (Set of 5)

Mahle Rings Buick 301350L Eng 77-79 Checker 327350 Eng 69-79 Chevy Plain Ring Set

NGK Checker Marathon 1979-1978 Spark Plug Wire Set

Cometic Chevrolet Gen-1 Small Block V8 .188in Fiber Valve Cover Gasket - Splayed Valve Heads

Cometic Chevrolet Gen-1 Small Block V8 .060in MLS Cylinder Head Gasket - 4.125in Bore

King Engine Bearings Chevy LS1 / LS6 / LS3 (Size 010X) Performance Rod Bearing Set

MAHLE Original Buick Apollo 75-73 Oil Pan Set

Frequently Asked Questions

Do these parts fit my 1981 GMC K1500 Sierra Classic?

What engine & drivetrain options are available for my 1981 GMC K1500 Sierra Classic?

What brands make parts for the 1981 GMC K1500 Sierra Classic?

How fast do 1981 GMC K1500 Sierra Classic parts ship?

What warranty do your 1981 GMC K1500 Sierra Classic parts come with?