Muffler Mounting Big Boss 4x6 Updated 2 91 for 1991 polaris big-boss-4x6-w918627 — OEM Part Numbers & Prices

Quick answer: The Muffler Mounting Big Boss 4x6 Updated 2 91 for the 1991 1991 polaris big-boss-4x6-w918627 (ATV) consists of 20 OEM components. 3 are currently matched to live Amazon/eBay listings, priced from $6.99–$45.00.

Filter by state:

Showing 20 Components

BOLT(10)

Live Price Match

OEM Ref: 7512666

Also fits 835 other vehicles

Amazon

$20.85

eBay

$24.99

Amazon Listing

The **Mod-GRT898-4024** is a premium replacement electrical ignition component specifically engineered for Polaris Bolt RZR models 1000, 900, 800, 500, and 570, as well as the Sportsman series. Designed to meet exacting performance standards, this component ensures reliable ignition functionality, optimizing engine efficiency and reducing downtime during maintenance.

Comprised of high-quality materials, this part adheres to strict manufacturing tolerances for durability and compatibility. Ideal for both professional mechanics and DIY enthusiasts, the **Mod-GRT898-4024** delivers consistent performance in all operating conditions. Each unit undergoes rigorous quality control to guarantee seamless integration with your vehicle’s electrical system.

0: Elevate Your Ride with Premium Replacement Parts: Discover top-quality auto parts and accessories engineered to deliver exceptional performance and reliability, ensuring your vehicle operates at its best.
1: Comprehensive Selection of Motorcycle & Scooter Components: Explore our extensive range of belt, chain, and sprocket parts meticulously designed to meet the demands of motorcycle and scooter enthusiasts.
2: Unmatched Quality in ATV & UTV Parts: From rugged off-road adventures to everyday utility, our ATV and UTV parts are built to withstand tough conditions and deliver unparalleled durability.
3: Power Up Your Vehicle with Electrical & Ignition Components: Upgrade your vehicle's electrical system with our high-quality components, engineered to provide reliable power distribution and ignition performance.
4: Trustworthy Source for Auto Parts: Whether you're performing routine maintenance or tackling a repair project, rely on us as your go-to destination for premium replacement parts and accessories.

View on Amazon ($20.85) →

eBay Listing

The Polaris 7512666 flange bolt is an original equipment manufacturer (OEM) component designed for precise fitment on a broad range of Polaris models, including Sportsman, Ranger, and RZR vehicles produced between 1990 and 2024. Engineered to meet the exacting standards of factory specifications, this bolt ensures reliable attachment of flanged assemblies, contributing to overall structural integrity and performance.

Each package contains four high‑strength bolts fabricated from durable steel, offering superior resistance to wear and corrosion under demanding off‑road conditions. The threaded design provides secure, repeatable fastening, while the head geometry aligns with standard Polaris torque specifications to facilitate proper installation without the need for additional adapters.

These bolts are ideal for replacement, repair, or upgrade applications where OEM quality is required. By maintaining original tolerances, they help preserve the vehicle’s warranty and operational reliability, making them a prudent choice for professional technicians and serious enthusiasts alike.

View on eBay ($24.99) →

NUT HEX 3/8 16 A ZTB NYL

Live Price Match

OEM Ref: 7542451

Also fits 101 other vehicles

Amazon

$14.95 Save $7.96

eBay

$6.99

Amazon Listing

The **Quad Logic Roll Bar Cage Bolt and Nut Set** provides a direct OEM replacement solution for Polaris RZR Ranger ACE models requiring **3/8-inch x 1-1/4-inch** fasteners in roll cage-to-chassis applications. This set includes **4 hex socket bolts** and **4 nylon lock nuts**, manufactured to **Grade 2 specifications** and **0.38-inch groove diameter** compatibility for precise fitment. Engineered to match original equipment dimensions, these fasteners ensure secure mounting while resisting vibration and loosening.

Ideal for maintenance or restoration projects, this **4-piece set (8 total components)** replaces Polaris part numbers **7517935** and **7542451**. The **gold-colored, hex socket design** ensures tool compatibility with standard Allen wrenches, while the nylon lock nuts provide added corrosion resistance. Weighing **6 ounces**, this set delivers durability and reliability for off-road applications.

0: Roll cage bolt and nut set for listed Polaris ATV and UTV models
1: Includes (4)Includes 3/8-inch x 1-1/4-inch Allen head bolts with nylon lock nuts
2: Commonly used for roll cage to chassis mounting locations
3: Replaces Polaris part number 7517935 and 7542451
4: Manufactured to OEM dimensional specifications
5: Supplied as a 4-bolt and 4-nut replacement hardware set

View on Amazon ($14.95) →

eBay Listing

The Polaris 7542451 Nylock Nut is a precision-engineered fastener designed for OEM applications in Polaris off-road and utility vehicles. These high-quality nuts feature a self-locking nylon insert to prevent loosening under vibration, ensuring reliable performance in demanding environments.

Manufactured to Polaris specifications, each nut is built for durability and compatibility with original equipment assembly. The 3-pack (NOS) provides a cost-effective solution for maintenance, repairs, or replacement parts. Ideal for mechanics and enthusiasts requiring genuine Polaris components for accurate fit and function.

View on eBay ($6.99) →

WASHER,RUBBER

Live Price Match

OEM Ref: 5410436

Also fits 779 other vehicles

Amazon

$17.85

eBay

$45.00

Amazon Listing

The Polaris GRT898-1800 rubber washer is a premium replacement component designed for use on a variety of Polaris models, including the Ace, Hawkeye 325, Ranger Sportsman, and the 800, 700, 600, and 570 series. Engineered to meet original equipment specifications, this washer provides reliable sealing and vibration dampening for optimal performance of electrical and ignition systems.

Each package contains a single GRT898-1800 washer, identified by its model name GRT898-1800. The part is manufactured to exacting tolerances, ensuring a precise fit and long‑term durability in demanding motorcycle, scooter, ATV, and UTV applications. Install this washer to maintain system integrity and prevent premature wear of surrounding components.

0: Elevate Your Ride with Premium Replacement Parts: Discover top-quality auto parts and accessories engineered to deliver exceptional performance and reliability, ensuring your vehicle operates at its best.
1: Comprehensive Selection of Motorcycle & Scooter Components: Explore our extensive range of belt, chain, and sprocket parts meticulously designed to meet the demands of motorcycle and scooter enthusiasts.
2: Unmatched Quality in ATV & UTV Parts: From rugged off-road adventures to everyday utility, our ATV and UTV parts are built to withstand tough conditions and deliver unparalleled durability.
3: Power Up Your Vehicle with Electrical & Ignition Components: Upgrade your vehicle's electrical system with our high-quality components, engineered to provide reliable power distribution and ignition performance.
4: Trustworthy Source for Auto Parts: Whether you're performing routine maintenance or tackling a repair project, rely on us as your go-to destination for premium replacement parts and accessories.

View on Amazon ($17.85) →

eBay Listing

A high-performance, precision-engineered OEM rubber washer designed exclusively for the 1995–2026 Polaris Ranger Sportsman RZR lineup. Crafted from durable, weather-resistant rubber, this washer ensures a secure, leak-free seal between critical components, reducing wear and preventing contamination in high-vibration environments.

Ideal for professional mechanics and DIY enthusiasts, this part adheres to Polaris’s original specifications, guaranteeing an exact fit and optimal functionality. Its robust construction minimizes deformation under heavy loads, maintaining structural integrity over extended use. Install with confidence, knowing this washer meets the rigorous demands of off-road and recreational riding.

View on eBay ($45.00) →

NUT(10)

Exact OEM Stock Low

OEM Ref: 3080285

Also fits 167 other vehicles

Muffler Mounting Big Boss 4x6 Updated 2 91

BOLT(10)

NUT HEX 3/8 16 A ZTB NYL

WASHER,RUBBER

NUT(10)

WASHER LOCK ,(10)

MANIFOLD Substituted by 1260543 029

SPRING EXHAUST(10)

HEADPIPE WELD Substituted by 1260540 029

SPRING, EXHAUST(10)

MUFFLER/ARRESTOR,BLACK.

HEATSHIELD,MUFFLER Substituted by 5220671 067

BOLT&WASHER

BOLT&WASHER

COLLAR

MOUNTING,RUBBER

BUSHING, MUFFLER MT.

WASHER(10)

DAMPENER MTR MT.

NUT(10)

WASHER(10)

Muffler Mounting Big Boss 4x6 Updated 2 91 — Frequently Asked Questions

Notice