The Jeep Wrangler YJ (1987–1995) is one of the more polarizing Jeeps in the lineup’s history — famously the only Wrangler with square headlights, a choice that sparked heated debates among purists when it was introduced. Today, the YJ occupies an interesting position in the Jeep world: old enough to be a restoration project for many, young enough that a well-cared-for example can still be a daily driver or trail rig with the right parts. This guide covers what restoration and upgrade parts are available for the YJ and where to find them.
The State of YJ Parts Availability in 2026
Parts availability for the YJ is a mixed picture. Wear items — fuel pumps, water pumps, belts, hoses, brake hardware, and similar maintenance parts — are generally available through standard automotive suppliers like RockAuto, AutoZone, and O’Reilly at reasonable prices. The YJ shares many mechanical components with other Jeep and AMC vehicles from the era, which helps parts availability.
Factory body parts — doors, fenders, tubs, and soft tops — are significantly harder to find in good condition. New OEM or OEM-equivalent factory body panels are scarce, and the market relies primarily on quality used parts from dismantlers and the active Jeep swap community. Soft tops from aftermarket brands like Bestop and Rampage are still actively produced for the YJ and are a reliable source for soft top replacements.
Aftermarket Suspension Parts
The YJ suspension aftermarket is smaller than for the TJ or JK but still well-stocked for common upgrades. Lift kits in the 2–4-inch range are available from Rough Country, Skyjacker, and Old Man Emu. The YJ uses a leaf spring front suspension (unlike the TJ’s coil springs) which makes lift kits simpler and less expensive — spring replacement kits are straightforward and well-documented.
A popular YJ modification is a suspension swap to coil springs — sometimes called a “SOA” (spring-over-axle) build or a full coil conversion — which improves articulation significantly. This is a more involved fabrication project but well-documented in the YJ community. Conversion kits are available from specialty manufacturers if you want a less custom route.
Axle Upgrades
The factory YJ rear axle is an AMC Model 20 — adequate for stock use but known to crack under serious off-road stress. A common and cost-effective upgrade is swapping to a Dana 35 (available from early TJ and XJ donors) or a Dana 44 (stronger still, available from various Jeep and Ford donor vehicles). Dana 44 axle swaps for the YJ are well-documented and affordable due to the abundance of used 44s available.
Adding lockers to a YJ axle is straightforward once you have identified your ring gear size. Spartan Lockers and ARB Air Lockers are both available for common YJ/XJ axle sizes.
Body Parts and Soft Tops
New soft tops for the YJ are available from Bestop (premium) and Rampage (value) in full top and bimini configurations. These are direct-fit replacements that include all hardware and installation instructions. Expect to pay $350–$700 for a quality replacement top depending on style and brand.
For hard tops, the supply is limited to used examples. The YJ hard top is interchangeable with the earlier CJ-8 top and some XJ sunroofs with modification, but finding a clean used YJ hard top requires patience. Check Jeep-specific classifieds on JeepForum.com, Facebook Marketplace, and local Craigslist. Prices vary enormously by condition and location — from $300 for a rough example to $1,500+ for a clean, rust-free top in desirable colors.
Engine and Drivetrain
The YJ came with the AMC 258 inline-six (renamed the 4.2L by Jeep) through 1990 and the legendary 4.0L from 1991–1995. The 4.0L models are significantly more desirable for performance and parts availability — the 4.0L shares its block architecture with later XJ and TJ 4.0Ls, making engine and fuel system parts interchange easier.
For 4.2L-powered YJs, a popular upgrade is swapping to the 4.0L from a donor XJ or TJ. This provides better power, better fuel economy, and dramatically better parts availability. The swap is well-documented and straightforward for experienced mechanics.
Where to Find YJ Parts
- RockAuto.com: Best source for mechanical wear items — fuel system, cooling, brakes, electrical
- Quadratec.com: Comprehensive YJ-specific catalog including suspension, soft tops, and accessories
- JeepForum.com classifieds: Active community with used YJ parts listings
- Facebook Marketplace / Craigslist: Local finds for body parts, hard tops, and complete donor vehicles
- eBay Motors: Good for NOS (new old stock) factory parts and hard-to-find trim pieces
Is the YJ Worth Restoring?
A clean, rust-free YJ with a 4.0L engine is absolutely worth restoring and represents an excellent off-road platform at a lower entry price than an equivalent TJ. The square headlights that divided opinions in 1987 have become a collector’s distinction today. Approach a YJ restoration with realistic parts-sourcing expectations for body components but confidence that mechanical and suspension parts are readily available for a complete build.
Browse our Jeep Wrangler YJ parts and accessories catalog for suspension lifts, armor, and drivetrain upgrades.