1999 GMC SIERRA-1500 Chevrolet Performance Parts and Accessories

Flexplate Bolt, Steel, 11mm x 1.5, 0.800 in. UHL, Chevy, Gen III/IV, LS Series, Automatic Transmission only, Each

Part Number: NAL-11569956

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

Main Bolts, 6-Bolt Main, Inner Bolts, Chevy, 4.8, 5.3, 5.7, 6.0L, Each

Part Number: NAL-12560272

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Valve Cover Bolts, Steel, Chevy Small Block, L92, Each

Part Number: NAL-12577215

4.87 out of 5 stars ( 15 )

Estimated Ship Date: Today

Valve Spring Retainers, Steel, Stock, Each

Part Number: NAL-10166344

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Crankshaft Key, Long Type, 0 degree Offset, Steel, Natural, Chevy, Each

Part Number: NAL-12561513

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

Flexplate Bolt, Steel, 11mm x 1.5, 1.000 in. UHL, For Use With 12563532 Flexplate Spacer, Chevy, Gen III, Each

Part Number: NAL-19257940

1.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

Oil Pan Bolt, Steel, Gold Iridite, GM, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0L, Each

Part Number: NAL-12554990

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

Cam Retainer Plate Bolt, Roller Cam, Chevy, Small Block, Each

Part Number: NAL-14093637

5.0 out of 5 stars ( 17 )

Estimated Ship Date: Today

Spark Plug Wire Retainer, Plastic, Black, Each

Part Number: NAL-12132229

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Oil Seal, Rubber, 20.69mm Inner Diameter, 4.20mm Width, Buick, Chevy, GMC, Hummer, Pontiac, Each

Part Number: NAL-12584922

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Engine Expansion Plug, Brass, Buick, Cadillac, Chevy, GMC, Hummer, Oldsmobile, Pontiac, Saab, Saturn, Each

Part Number: NAL-9427693

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Bolts, Intake Manifold, Steel, Natural, Hex Head, Chevy, 5.0, 5.7L, Each

Part Number: NAL-12550027

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Oil Dipstick Plug, Driver Side Plug, Chevy, 5.0, 5.7L, Each

Part Number: NAL-14091563

2.25 out of 5 stars ( 16 )

Estimated Ship Date: Today

Valve Lock, 7 degree, Stamped Steel, 1-groove Beadlock-style, 8mm Stem Diameter, Each

Part Number: NAL-10166345

Not Yet Reviewed

Estimated Ship Date: Today

Oil Seal, Rubber, 23.60mm Inner Diameter, 3.55mm Width, Chevy, GMC, Pontiac, Each

Part Number: NAL-12557752

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Dowel Pin, Camshaft Dowel Pin, Each

Part Number: NAL-12554553

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Dowel Pin, Flywheel Locating, Steel, 0.437 in. Diameter, Chevy, Big Block, Each

Part Number: NAL-10046031

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

Valve Cover Hole Plug, Plastic, Black, Cadillac, Chevy, GMC, Pontiac, Each

Part Number: NAL-12568011

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Valve Spring, L76/L92 Style,.520 Max lift, Single Beehive, 1.290 in. o.d., 1.230 in. Coil Bind, 1.800 in. Installed Height, Each

Part Number: NAL-12706568

Not Yet Reviewed

Estimated Ship Date: Today

Head Bolt, 8mm, Hex, Cadillac, Chevy, GMC, Hummer, Pontiac, Saab, Small Block Chevy, LS, Each

Part Number: NAL-12558840

Not Yet Reviewed

Estimated Ship Date: Today

SEAL

Part Number: NAL-26001594

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 19, 2026 if ordered today

• Drop Ship
• Special Order

Bolt and Screw, Replacement, Bolt, AC Compressor Upper Bracket, OEM Style, Steel, Zinc Finish, Flanged Hex Head, Cadillac, Chevy, GMC, Hummer, Each

Part Number: NAL-11516360

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Drop Ship
• Special Order

cap

Part Number: NAL-19540420

Not Yet Reviewed

Estimated Ship Date: Today

RETAINER

Part Number: NAL-15153415

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Drop Ship
• Special Order

Differential Components, SCREW-DIFF PNG SHF LK

Part Number: NAL-14012702

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Drop Ship
• Special Order