Trailblazer parts at Summit Racing

ACDelco GM Genuine Parts Replacement Horns 89057196

Horn, Stock Replacement, Each

Part Number: ADO-E1903E

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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ACDelco GM Genuine Parts Water Necks and Thermostat Housings 12587395

Water Neck and Thermostat Housing, Stock, Aluminum, Natural, Buick, Cadillac, Chevrolet, GMC, Hummer, Saab, Each

Part Number: ADO-15-10595

4.0 out of 5 stars ( 2 )

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ACDelco Transmission Solenoids 19139322

Transmission Solenoids, TCC/Lock-up Solenoid, GM, Each

Part Number: ADO-214-1892

5.0 out of 5 stars ( 3 )

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Motive Gear Ring and Pinion Sets GM10-273 GM 8.5/8.6 in. 2.73 Gears

Gear, Ring and Pinion, 2.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-GM10-273

4.5 out of 5 stars ( 2 )

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ACDelco GM Genuine Parts Iridium Spark Plugs 12683541

Spark Plugs, GM Genuine Parts Iridium Spark Plugs, Resistor, Nickel Alloy Core, Tapered Seat, 0.984 in. Reach, 12mm Thread, Buick, Chevy, GMC, Each

Part Number: ADO-41-156

Not Yet Reviewed

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Chevrolet Performance Pushrods 10238852

Pushrod, Replacement, 5/16 in. Diameter, 7.325 in. Length, Chevy, LS, Each

Part Number: NAL-10238852

Not Yet Reviewed

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Innovators West Harmonic Balancers 863

Innovators West Harmonic Balancers 863

GM, LS, Trucks, Trailblazer SS, SFI Approved, 8-Rib, +10% Overdrive, Damper

Part Number: INW-863

1.0 out of 5 stars ( 1 )

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Dorman Exhaust Manifold Mounting Hardware 03133

Exhaust Manifold Studs, Nuts, Front Flange, Buick, Cadillac, Oldsmobile, Chevy, GMC, Set of 6

Part Number: RNB-03133

3.64 out of 5 stars ( 25 )

Estimated Ship Date: Tomorrow

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ACDelco Gold Tensioner Pulleys 88909590

Idler Pulley, Replacement, Serpentine, 6-groove, Steel, Black, Buick, Chevy, Chrysler, Dodge, Ford, GMC, Jeep, Each

Part Number: ADO-38009

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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ACDelco Automatic Transmission Shift Shaft Seals 19340257

Automatic Transmission Shift Shaft Seal, Nitrile, Buick, Cadillac, Chevy, Each

Part Number: ADO-8792S

1.0 out of 5 stars ( 2 )

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FAST XR Series Ignition Coils 30387-8

Ignition Coils, XR Series, Black, 50,000 Volts Max, V8, Round Truck Style, LS, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Set of 8

Part Number: FST-30387-8

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ High-Output Ignition Coils SUM-850501-1B

Not Yet Reviewed

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Hastings Premium Ductile Ring Sets 2M4860S030

Piston Rings, Premium Ductile Ring Sets, 0.030 in. Oversize, 4.030 in. Bore, Plasma-moly, 1.5mm, 1.5mm, 3.0mm, Includes Ring Set for One Piston, Each

Part Number: HSN-2M4860S030

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Autolite Double Platinum Spark Plugs PP5245

Spark Plug, Double Platinum, 14mm Thread, 0.708 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-APP5245

Not Yet Reviewed

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Dorman Battery Hold-Downs 00587

Battery Hold Down Clamp, Steel, Black, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: RNB-00587

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

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Westin Sure-Grip Running Boards 27-6125

Running Boards, Sure-Grip, Aluminum, Black, 72.0 in. Length, Pair

Part Number: WSA-27-6125

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

MechMan Elite Series Billet Alternators B8206370RD

Alternator, E Series, 12 V, 370 amps, Billet Aluminum, Red Anodized, Serpentine, Buick, Cadillac, Chevy, GMC, Hummer, Oldsmobile, Each

Part Number: MEH-B8206370RD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Cometic MLS Head Gaskets C15361-036

GM LS1/LS2/LS3/LS6 Gen-3/4 Small Block V8 .036" MLS Cylinder Head Gasket, 3.810" Bore

Part Number: CGT-C15361-036

Not Yet Reviewed

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ACDelco GM Genuine Parts Engine Oil Drain Plugs 55577568

Drain Plug, Engine Oil, OEM, Natural, GM, Each

Part Number: ADO-55577568

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Pioneer 168-Tooth Flexplate FRA-471HD

FLEXPLATE ASSEMBLY

Part Number: PIO-FRA-471HD

Not Yet Reviewed

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Dorman Exhaust Manifold Mounting Hardware 03413B

Exhaust Manifold Bolts, Steel, Zinc Plated, Cadillac, Chevy, GMC, Chrysler, Dodge, Isuzu, Jeep, Set of 12

Part Number: RNB-03413B

4.59 out of 5 stars ( 27 )

Estimated Ship Date: Tomorrow

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Taylor Spiro-Pro Spark Plug Wire Sets 76646

Wire, Spiro-Pro, 8mm, Blue, Coil Pack, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Set of 8

Part Number: TAY-76646

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Denso Oxygen Sensors 234-4209

Oxygen Sensor, Universal, Heated, Thread-In Mounting, Each

Part Number: DNP-234-4209

3.6 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Richmond Gear Differential Carrier Bearing Shim Kits 38-0006-1

Differential Side Bearing Spacer; Differential Carrier Shims; For Ford 7.5 in./GM 7.5 in./GM 8.5 in./GM 8.2 in

Part Number: RMG-3800061

4.53 out of 5 stars ( 15 )

Estimated Ship Date: Tomorrow

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ACDelco GM Genuine Parts Camshaft Bearings 19260876

Camshaft Bearings, OE Replacement, Standard Size, 2.308 in. O.D., 0.775 in. Width, Position 3, GM, LS, 3rd Design, Each

Part Number: ADO-19260876

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Chevrolet Performance Oil Seals 12584922

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: Tomorrow

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CHEVROLET TRAILBLAZER Parts and Accessories