EPI - epiWE325131 - Heavy Duty Rear Suspension Spring

Tackle heavier workloads and aggressive terrain without letting rear suspension sag compromise your machine’s handling. The EPI Heavy Duty Rear Suspension Spring is engineered to give your vehicle the extra backbone it needs when factory coils buckle under real-world demands. Delivering a rate roughly 25% heavier than stock, this upgrade actively counteracts the added weight of hard-working accessories—such as full cab enclosures, rear tool setups, winches, and loaded dump beds—restoring lost ground clearance and keeping your chassis level and composed.

• Manufactured from premium chrome silicon alloy steel for exceptional fatigue resistance and long-lasting durability
• Features a 238/350 lb/in progressive spring rate to support extra payload without producing an overly harsh ride
• Sold individually to accommodate single shock service or paired axle upgrades

The EPI Heavy Duty Rear Suspension Spring is designed for powersports vehicles carrying heavier workloads and operating on aggressive terrain. With a progressive 238/350 lb/in spring rate, it supports additional payload while helping maintain chassis level and handling performance when factory springs sag under increased load.

Manufactured from chrome silicon alloy steel, this rear spring provides fatigue resistance and long-lasting durability. It is approximately 25% heavier than stock and is intended to help compensate for added weight from accessories such as full cab enclosures, rear tool setups, winches and loaded dump beds. The spring is sold individually for single-shock service or paired axle upgrades.

Fitment includes 2017 Can-Am Defender HD8, Defender HD10, Defender DPS HD8, Defender DPS HD10 and Defender HD10 Mossy Oak Hunting Edition models. It also fits 2018 Can-Am Defender HD8, Defender DPS HD8, Defender HD10, Defender DPS HD10 and Defender HD10 Mossy Oak Hunting Edition models.

Key Features & Performance Benefits

• Heavy-duty spring rate: Approximately 25% heavier than stock to help counteract rear suspension sag under added loads.
• Progressive performance: The 238/350 lb/in rate supports extra payload without producing an overly harsh ride.
• Durable construction: Chrome silicon alloy steel provides fatigue resistance and long-lasting durability.
• Improved load support: Helps restore ground clearance and maintain a level, composed chassis under demanding working conditions.

Key Product Specifications & Technical Data

• Brand: EPI
• Part number: epiWE325131
• Part type: Powersports suspension spring
• Position: Rear
• Spring rate: 238/350 lb/in progressive
• Load rating relative to stock: Approximately 25% heavier
• Material: Chrome silicon alloy steel
• Quantity: Sold individually; 1 unit per SKU

What's Included

One EPI Heavy Duty Rear Suspension Spring.

Fitments:
2017 Can-Am Defender DPS HD10 Base
2017 Can-Am Defender DPS HD8 Base
2017 Can-Am Defender HD10 Base
2017 Can-Am Defender HD10 Mossy Oak Hunting Edition Base
2017 Can-Am Defender HD8 Base
2018 Can-Am Defender DPS HD10 Base
2018 Can-Am Defender DPS HD8 Base
2018 Can-Am Defender HD10 Base
2018 Can-Am Defender HD10 Mossy Oak Hunting Edition Base
2018 Can-Am Defender HD10 X MR Base
2018 Can-Am Defender HD8 Base
2019 Can-Am Defender HD10 Mossy Oak Hunting Edition Base
2020 Can-Am Defender DPS HD8 Base
2020 Can-Am Defender HD8 Base
2021 Can-Am Defender DPS HD8 Base
2021 Can-Am Defender HD8 Base
2022 Can-Am Defender DPS HD7 Base
2022 Can-Am Defender HD7 Base

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Regular Stock: t
Units Per Sku: 1