Crusader 98171 - EST Distributor Spark Plug Wire Set
Crusader 98171 - EST Distributor Spark Plug Wire Set
Crusader
43 in stock
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Crusader 98171 — EST Distributor Spark Plug Wire Set
Crusader 98171 is an original Crusader 7mm ignition spark plug wire set built for Crusader big block engines running Delco EST electronic ignition marine distributors. Straight boots at the spark plug end clear exhaust manifolds cleanly, while 90 degree boots at the distributor keep the routing tight. Replaces Volvo 3857169.
Part Specifications
- Crusader Part Number: 98171
- Type: Spark plug wire set, 7mm RFI suppression ignition cable
- Application: Crusader V8 454 cid (7.4L) and 502 cid marine engines with Delco EST distributors
- Rotation: Fits both standard and reverse rotation engines
- Boot Configuration: Straight boots at spark plugs, 90 degree boots at distributor
- Replaces: Volvo 3857169
Confirm Fitment Before Ordering
Not sure this wire set matches your engine and distributor? You can check the parts diagrams available on our website to help identify the correct part. Or, give us your engine model and serial number and we'll confirm it for you before you order — by email, text, or live chat.
Additional Information
- Vendor: Crusader Marine
- Part Number: 98171
- OEM Cross-Reference: Replaces Volvo 3857169
Installation Notes
Install following the applicable Crusader big block engine service manual, routing wires to avoid contact with hot exhaust surfaces.
Frequently Asked Questions
Q: How do I confirm this wire set fits my engine?
A: Send us your Crusader engine model and serial number and we'll confirm 98171 is the correct wire set for your 454 or 502 cid engine and distributor — by email, text, or live chat.
Q: Does this fit reverse rotation engines?
A: Yes, this wire set fits both standard and reverse rotation Crusader big block engines.
Q: What are signs my spark plug wires need replacing?
A: Common signs include misfires, rough idle, reduced power, or visible cracking, arcing marks, or corrosion on the wire boots.
Q: Does this replace Volvo 3857169 directly?
A: Yes, Crusader 98171 is a direct replacement for Volvo 3857169.
Q: Why are the spark plug boots straight instead of angled?
A: The straight boots at the spark plug end are designed to clear the exhaust manifolds on big block installations, while the 90 degree boots at the distributor keep the wire routing clean.
! Compatibility references are provided for informational purposes only and do not constitute a fitment guarantee. Part numbers, application listings, and "replaces" cross-references are based on manufacturer data and are intended as a starting point for identification — not a guarantee of fit for your specific engine, hull, or installation.
Buyer is solely responsible for verifying compatibility with their engine model, serial number, model year, and trim configuration before purchase. If you are unsure whether this part fits your application, contact MacombMarineParts.com before you buy — we're available via text, email, or online chat to help verify compatibility for your specific application.
MacombMarineParts.com is not liable for parts ordered based on assumed fitment. Returns due to buyer-selected incorrect fitment are subject to our standard return and restocking fee policies.