1991 Chevrolet R2500 Suburban Spark Plug 8 Cyl 7.4L Accel

★★★★☆ 4.5/5 44 ratings

Features:
Header-Box
U-Groove Ground Electrode
Five-Rib Aluminum Insulator
Copper Core Nickel/Chrome Steel
Electric Heat Seal
Copper-Glass Gas-Tight Seal
Less Flame Dissipation

14mm Thread; .460 in. Reach; Heat Range 5; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 4 Pack;0.035 in. Plug Gap

U-Groove Spark Plug Header Plug; 14mm Thread; .460 in. Reach; Heat Range 5; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 4 Pack;

U-Groove Spark Plug Header Plug

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3 In Stock

Best Price:

$38.00 USD $45.60 USD

Brand	Accel
Part #	A360574S-4
Condition	New
Warehouse	B

R2500 Suburban Accel Spark Plug 1991 Chevrolet

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Additional Fitment Information:

Vehicle	Engine	CC	CID	Block Type
1991 Chevrolet R2500 Suburban	8 Cyl 7.4L	-	454	V

Description Specifications Reviews (44)

14mm Thread; .460 in. Reach; Heat Range 5; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 4 Pack;0.035 in. Plug Gap
U-Groove Spark Plug Header Plug; 14mm Thread; .460 in. Reach; Heat Range 5; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 4 Pack;
U-Groove Spark Plug Header Plug

Replacement & Maintenance Guide

Helpful replacement and maintenance guidance for Spark Plug.

System	Ignition
Description / What It Does	Spark plug wires carry high voltage from the coil or distributor to the spark plugs. Worn wires can arc, misfire, reduce fuel economy, and damage coils or catalytic converters.
Replace / Inspect Guidance	Inspect during tune-ups; replace every 30,000–60,000 miles, sooner if cracked, oil-soaked, high-resistance, or causing misfires.
Job Difficulty	Easy DIY
Maintenance Tips	Route wires exactly like original, use dielectric grease where appropriate, keep them off hot exhaust parts, and replace plugs on schedule.

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General

Assembly Method

Tapered

Gap Size

0.035 In.

Hex Size

0.625 In.

Projected Tip

Yes

Reach

0.460 In.

Resistor

Yes

WARNING CA Proposition 65

Information on technical characteristics, the delivery set, the country of manufacture and the appearance of the goods is for reference only and is based on the latest information available at the time of publication.