1986 BUICK REGAL Spark Plugs

Spark Plug, Shorty, C-Cut Electrode, Gasket Seat, 14mm Thread .750 in. Reach, Projected, Resistor, Set of 4

Part Number: ACC-0416S-4

4.12 out of 5 stars ( 115 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. Reach, 5/8 in. Hex, Projected Tip, Resistor, Each

Part Number: NGK-6630

4.97 out of 5 stars ( 31 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Shorty, U-Groove, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Set of 4

Part Number: ACC-0414S-4

4.51 out of 5 stars ( 63 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Copper Core, Tapered Seat, 14mm Thread, .460 in. Reach, Partial Projected, Resistor, Each

Part Number: ATL-25

4.82 out of 5 stars ( 17 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-7401

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-6945

3.4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Conventional Resistor, Nickel Alloy Tip, Tapered Seat, 14mm Thread, Each

Part Number: ADO-R44TS

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-2869

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.431 in. Reach, Each

Part Number: ATL-AR25

4.82 out of 5 stars ( 11 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, RAPIDFIRE Performance Platinum, Gasket Seat, 14mm Thread, Resistor, Each

Part Number: ADO-5

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, XP Xtreme Performance, Copper Core, Tapered Seat, 14mm Thread, 0.460 in. Reach, Resistor, Each

Part Number: ATL-XP25

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-7559

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Conventional Resistor, Nickel Alloy Tip, Tapered Seat, 14mm Thread, Each

Part Number: ADO-R45TSX

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, RV15YC4, Copper Plus, 14mm Thread, .460 in. Reach, Resistor, Each

Part Number: CPN-18

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, OE Iridium, Tapered Seat, 18mm Thread, 0.441 in. Reach, Resistor, Each

Part Number: BCH-9659

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Platinum Power, 14mm Thread, .460 in. Reach, Resistor, Each

Part Number: CPN-3018

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, E3, Gasket Seat, 14mm Thread, 0.750 in. Reach, Projected Tip, Resistor, Each

Part Number: ETP-E3-56

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Double Platinum, Tapered, 14mm Thread, .460 in. Reach, Resistor, Each

Part Number: CPN-7018

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Iridium, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: CPN-9201

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/12/2026

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

Part Number: ADO-41-817

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, GP Platinum, 14mm Thread, .460 in. Reach, 5/8 in. Hex, Tapered Seat, Resistor, Each

Part Number: NGK-3207

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Platinum Power, Gasket Seat, 14mm Thread, .750 in. Reach, Resistor, Each

Part Number: CPN-3071

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Iridium Power, ITF16, 14mm Thread, 11.60mm Reach, Tapered Seat, Universal, Each

Part Number: DNP-5330

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Iridium TT, ITF16TT, 14mm Thread, 11.60mm Reach, Tapered Seat, Universal, Each

Part Number: DNP-4715

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Tapered Seat, 0.431 in, Reach, Each

Part Number: ATL-666

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026