2003 CHEVROLET SILVERADO-2500-HD Ignitions & Electrical

Spark Plug, Professional, Platinum Tip, Tapered Seat, 14mm Thread, Resistor, Each

Part Number: ADO-41-962

4.83 out of 5 stars ( 69 )

Estimated Ship Date: Today

Spark Plug, V-Power, Tapered Seat, 14mm Thread, .708 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-2238

5.0 out of 5 stars ( 19 )

Estimated Ship Date: Today

Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .691 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-3403

4.87 out of 5 stars ( 23 )

Estimated Ship Date: Today

Spark Plug, E3, Tapered Seat, 14mm Thread, 0.708 in. Reach, Projected Tip, Resistor, Each

Part Number: ETP-E3-54

4.59 out of 5 stars ( 98 )

Estimated Ship Date: Today

Spark Plug, Resistor, Iridium Tip, Copper Core, 14mm Thread Size, 0.708 in. Reach, Tapered Seat, Each

Part Number: ATL-XP5245

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Spark Plugs, Iridium TT, Tapered Seat, 14mm Thread, 18mm Reach, Resistor, Each

Part Number: DNP-4713

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Today

Spark Plug Wire Retainer, 4-Wire, Plastic, Chevrolet, GMC, Saturn, 4 cyl., V8, Each

Part Number: NAL-88891792

3.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

Spark Plug, Iridium, Iridium, 14mm Thread, 0.689 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: CPN-9405

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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

Estimated Ship Date: Today

Spark Plugs, Iridium Long Life, Tapered Seat, 14mm Thread, 18mm Reach, Resistor, Each

Part Number: DNP-5090

Not Yet Reviewed

Estimated Ship Date: Today

Wiring Pigtail, Coolant Temperature Sensor, Each

Part Number: SMP-TX3A

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

Sending Unit, Temperature, 3/8 in. NPT, Each

Part Number: SMP-TX3T

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Spark Plug, Platinum Power, 14mm Thread, .708 in. Reach, Resistor, Buick, Chevy, Oldsmobile, Isuzu, GMC, Each

Part Number: CPN-3015

Not Yet Reviewed

Estimated Ship Date: Today

Relay, 12 V, 10/20 amps, Single Pole, Spade Terminals, Each

Part Number: BCH-0332201107

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

Wiring Pigtails, 1-pin, Female, Black, for use on Acura®, for use on Honda®, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Olds, Pontiac, Saturn, Each

Part Number: SMP-HP3850

Not Yet Reviewed

Estimated Ship Date: Today

Spark Plug, OE Platinum, Gasket Seat, 14mm Thread, 17.5mm Reach, Resistor, Each

Part Number: BCH-6704

Not Yet Reviewed

Estimated Ship Date: Today

Spark Plug, E3, Tapered Seat, 14mm Thread, 0.708 in. Reach, Projected Tip, Resistor, Each

Part Number: ETP-E3-44

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Relay, Replacement, 12 V, 30 amps, 4 Male Terminals, Buick, Cadillac, Chevy, Daewoo, Dodge, Pontiac, Saturn

Part Number: ADO-D1741C

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

Starter Bolt, Inboard, Hex Head, Chevy, Small Block LS, Each

Part Number: NAL-12561848

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Wiring Pigtails, 2-pin, Male, Black, for use on Honda®, for Hyundai, for Nissan, BMW, Chevy, Chrysler, Dodge, Ford, GMC, Saab, Toyota, Volvo, Each

Part Number: SMP-S524

Not Yet Reviewed

Estimated Ship Date: Today

Sensor, Coolant Temperature Sensor, Replacement, Each

Part Number: HLN-2CTS0001

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

• Drop Ship
• Special Order

Multi Purpose Relay, Relays

Part Number: HLA-933332571

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

• Drop Ship
• Special Order

HVAC System Relay

Part Number: UAC-RE0959C

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

• Drop Ship
• Special Order

F-NUT-BAT P

Part Number: NAL-21021808

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

• Drop Ship
• Special Order