Select Your Ride

1
2
3

Starting Line Products Primary Spring 40-70 for Snowmobiles 4070

Part Number: 4070
STARTING LINE PRODUCTS
(No reviews yet) Write a Review
SKU:
4070
MPN:
40-70
Condition:
New
Availability:
Ships Same Business Day
Weight:
0.26 LBS
On Sale
view larger
MSRP: $34.95
Now: $33.20
Was: $34.95
— You save $1.75

Ships from Manufacture | Call to Order (231) 767-5055

Prop 65 Warning Prop 65 Warning cancer & reproductive harm Price Match Call for more info on price match does not include 3rd party ads
Frequently bought together:

Description

Primary clutch spring performance directly impacts your snowmobile's drive engagement and peak RPM characteristics—a worn or incorrect spring leaves power on the table and compromises throttle response. The Starting Line Products 40-70 delivers the engagement window and durability you need for consistent, predictable performance whether you're trail riding or pushing hard on the course. Shot-peened chrome-silicone construction resists sagging and fatigue, maintaining calibrated performance season after season.

  • Chrome-silicone wire construction
  • Shot-peened for durability
  • Resists sagging and breakage
  • Optimized engagement RPM
  • Lightweight design
  • Bolt-on installation
  • MPN: 40-70
View AllClose

Specs

COLOR/FINISH:
YELLOW
UNITS:
EACH
COLOR/FINISH:
BLUE
COMPRESSED LOAD METRIC:
63.5 KG - 140.6 KG
COMPRESSED LENGTH:
64 MM - 32 MM (2-1/2' - 1-1/4')
COMPRESSED LENGTH IMPERIAL:
2-1/2' - 1-1/4'
COMPRESSED LENGTH METRIC:
64 MM - 32 MM
COMPRESSED LOAD IMPERIAL:
140 LB - 310 LB
PRODUCT NAME:
SPRING
RIDING STYLE:
SNOW
STYLE:
PRIMARY (DRIVE)
TYPE:
CLUTCH
COMPRESSED LOAD:
63,5 KG - 140,6 KG (140 LB - 310 LB)
MATERIAL:
CHROME SILICON
View AllClose

0 Reviews

View AllClose

Fitment

Fitment for Starting Line Products Primary Spring 40-70 for Snowmobiles 4070

View AllClose

FREE Shipping on orders of $99 or more!

Commercial Accounts

We offer tax-free commercial accounts, providing businesses with significant savings and streamlined benefits.

Details

Easy 30-Day Returns

We proudly offer 30-day easy returns, ensuring a hassle-free and convenient shopping experience for our customers.

Details

You May Also Like

Related Products

Related Products

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

SECURE & SAFE PAYMENT

EASY RETURNS

FAST DELIVERY

AUTHORIZED DEALER

Privacy Policy | Terms of Use | Site Accessibility