2003 CHEVROLET SILVERADO-2500-HD Dorman Engines & Components

Rear Main Seal Cover, Aluminum, Natural, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Saab, Kit

Part Number: RNB-635-518

3.89 out of 5 stars ( 9 )

Estimated Ship Date: Today

Engine Timing Cover, 1-Piece, Aluminum, Natural, Buick, Cadillac, Chevrolet, GMC, LS V8, Each

Part Number: RNB-635-522

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Harmonic Balancer, Nodular Iron, Black, 7.720 in. o.d., Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Each

Part Number: RNB-594-209

1.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

Valve Cover, Left Side, Centerbolt Mounting, Cast Aluminum, Natural, Chevy, GMC, Pontiac, Small Block LS, Each

Part Number: RNB-264-965

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Today

Harmonic Balancer Bolt, Hex Head, 16mm x 2.0 Thread, Steel, Natural, Chevy, Each

Part Number: RNB-917-139

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Valve Cover, Stock Mounting Style, Stock Height, Cast Aluminum, Natural, Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Saab, Each

Part Number: RNB-264-759

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

DIPSTICK TUBE

Part Number: RNB-917-303

2.92 out of 5 stars ( 13 )

Estimated Ship Date: Today

Oil Pan Drain Plug, 12mm x 1.75 Thread Size, Magnetic, Seal, Each

Part Number: RNB-65372

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

Engine Oil Dipstick, Yellow Plastic Handle, Engine Block Entry, Passenger Side, Cadillac, Chevy, GMC, Hummer

Part Number: RNB-917-377

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

Idler Pulley, Serpentine, Steel, Black, Each

Part Number: RNB-419-602

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Today

Freeze Plugs, Steel, 2.219 in. Closed End Diameter, 2.226 in. Open End Diameter, Chevy, GMC, Set of 10

Part Number: RNB-555-081

Not Yet Reviewed

Estimated Ship Date: Today

Oil Drain Plug Pilot Point M12-1.75, Head Size 15Mm

Part Number: RNB-090-034-1

Not Yet Reviewed

Estimated Ship Date: Today

Engine Oil Filler Tube, Plastic, Black, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Each

Part Number: RNB-917-420

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

PCV Valve Cover Grommet, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: RNB-42055

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Oil Drain Plug Magnetic M12-1.75, Head Size 15Mm

Part Number: RNB-090-091-1

Not Yet Reviewed

Estimated Ship Date: Today

Oil Drain Pan Plugs, Plug, Thread Size 12mm x 1.75, Each

Part Number: RNB-65416

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Oil Pan Drain Plug, 14mm x 1.50 Thread Size, for Kia, Chevy, Ford, GMC, Lincoln, Mazda, Mercury, Merkur, Mitsubishi, Each

Part Number: RNB-65215

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Oil Drain Pan Plugs, Plug, Thread Size 12mm x 1.75, Each

Part Number: RNB-090-936CD

Not Yet Reviewed

Estimated Ship Date: Today

Engine Oil Filler Cap, Stock Style, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Workhorse, Workhorse Custom Chassis, Each

Part Number: RNB-42315

1.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Oil Drain Plug Pilot Point M14-1.50, Head Size 16Mm

Part Number: RNB-090-053-1

Not Yet Reviewed

Estimated Ship Date: Today

Automatic Belt Tensioner, 6-Rib Pulley, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Each

Part Number: RNB-419-112

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Automatic Belt Tensioner, Smooth Pulley, Buick, Cadillac, Chevy, GMC, Hummer, Saab, Each

Part Number: RNB-419-109

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

Dipstick Tube

Part Number: RNB-918-660

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

• Drop Ship
• Special Order

Spindle Nut Keys, Steel, Pair

Part Number: RNB-615-140

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

• Drop Ship
• Special Order

Bushing, Oil Pump Nylon Shaft Guide, Chevy, Each

Part Number: RNB-90460

Not Yet Reviewed

Estimated Ship Date: Today