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SWIFTFIXTOOLS OEM PARTS & HARDWARE DIRECTORY
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Gearcase Assembly

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1990 polaris trail-boss-2x4-w907527
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Quick answer: The Gearcase Assembly for the 1990 1990 polaris trail-boss-2x4-w907527 (ATV) consists of 70 OEM components. 2 are currently matched to live Amazon/eBay listings, priced from $2.95–$5.99.
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LOCK WASHER(10)

The **Polaris 7552901 OEM Spring Lock Washer** is a precision-engineered component designed for direct compatibility with Polaris Sport Lite 440 F/C models. Crafted from high-quality steel, this spring lock washer ensures secure fastening by maintaining consistent tension on bolts and screws, preventing loosening under vibration or load.

Ideal for maintenance and replacement applications, this washer adheres to original equipment manufacturer (OEM) specifications, guaranteeing optimal performance and durability. Compatible with Polaris 440 F/C models, it supports reliable operation in demanding off-road conditions.

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Buy on eBay ($2.95)
BOLT(10)

The OEM Polaris 7515327 Bolt is a high-quality, factory-approved replacement component designed for precise fitment in Polaris-branded equipment. Manufactured to Original Equipment Manufacturer (OEM) specifications, this bolt ensures compatibility and reliability in applications requiring exacting tolerances.

Ideal for maintenance and restoration projects, this bolt adheres to strict engineering standards and is sourced directly from authorized suppliers. Compatible with Polaris models requiring the 7515327 part number, it delivers durability and performance equivalent to original equipment. Engineered for durability, this bolt is a trusted choice for technicians and enthusiasts alike.

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Exact factory OEM # 3211048 may be temporarily out of stock in official store listings.
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Exact factory OEM # 4110062 may be temporarily out of stock in official store listings.
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Exact factory OEM # 7512391 may be temporarily out of stock in official store listings.
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Exact factory OEM # 7577902 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3221043 may be temporarily out of stock in official store listings.
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Exact factory OEM # 7542404 may be temporarily out of stock in official store listings.
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Exact factory OEM # 7515485 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231501 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231502 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231505 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231506 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231507 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231510 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231511 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231512 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231513 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231514 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231516 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231517 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231521 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231524 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231525 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231526 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231527 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231528 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231529 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231536 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231539 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231543 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231545 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231548 may be temporarily out of stock in official store listings.
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Exact factory OEM # 7721113 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231550 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231553 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231555 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3221045 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231561 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231563 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231562 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231565 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231564 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231569 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3224046 may be temporarily out of stock in official store listings.
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Exact factory OEM # 1341065 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231579 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231580 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231581 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231582 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231594 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231583 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231584 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231585 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231586 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231599 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231592 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231608 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231602 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231603 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231604 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231605 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231606 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231607 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231609 may be temporarily out of stock in official store listings.
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Exact factory OEM # 3231587 may be temporarily out of stock in official store listings.
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Gearcase Assembly — Frequently Asked Questions

What OEM parts are included in the Gearcase Assembly for the 1990 polaris trail-boss-2x4-w907527?

The Gearcase Assembly for the 1990 polaris trail-boss-2x4-w907527 includes 70 individual OEM components, each listed below with its exact OEM part number.

How much does the Gearcase Assembly cost for the 1990 polaris trail-boss-2x4-w907527?

Individual components in this assembly currently range from $2.95–$5.99, based on live Amazon and eBay listings. See the price comparison below for each part.

Will these OEM parts fit other 1990 polaris trail-boss-2x4-w907527 model years or trims?

Manufacturers frequently reuse the same physical part across multiple model years and trims, so a given OEM part number can be compatible with more than just this exact vehicle — search the OEM number directly to see every vehicle it fits.

What is the OEM part number for LOCK WASHER(10) on the 1990 polaris trail-boss-2x4-w907527?

The OEM part number for the LOCK WASHER(10) (part of the Gearcase Assembly assembly) on the 1990 polaris trail-boss-2x4-w907527 is 7552901.

Does OEM part 7552901 fit the 1990 polaris trail-boss-2x4-w907527?

Yes — OEM 7552901 is listed as the LOCK WASHER(10) for the 1990 polaris trail-boss-2x4-w907527 (1990), part of the Gearcase Assembly assembly.

Which parts are included in the Gearcase Assembly?

LOCK WASHER(10), BOLT(10), BELT-DRIVE(5), WASHER, DOMED(10), SW,REV./NEUT.INDIC., BOLT(10), WASHER,SHAKEPROOF,5/16, CONNECTOR LINK, and 62 more — see the full list below.

What other vehicles use OEM part number 7552901?

OEM 7552901 (LOCK WASHER(10)) also fits 3046 other vehicles in this catalog, including 1989 polaris big-boss-4x6-w898627 — Driven Clutch Assembly, 1989 polaris big-boss-4x6-w898627 — Engine Mounting, 1989 polaris big-boss-4x6-w898627 — Front Brake Assembly.

Cross-Marketplace Price Tracker
Compare total assembly price across Amazon Prime vs. eBay Certified Sellers.
Amazon Est. Total
—
eBay Est. Total
$8.94