Swift Springs Standard Coilover Spring (Barrel Type) - ID: 3.75" / Length: 20"

Swift Springs

|

SKU: 200-375-200B

Swift Springs Standard Coilover Spring (Barrel Type) - ID: 3.75" / Length: 20"

Sale price$195.50Regular price $230.00
4.6
Rated 4.6 out of 5 stars
8 Reviews
Ask a question
Out of stock

Authorized DealerGenuine parts & warranty
20+ Years in BusinessTrusted since 2005
Free USA ShippingOn orders $250+
Best Price GuaranteeWe’ll match or beat it
Fitment Notes

All fitment information on our website is provided by the manufacturer. It is the customer's responsibility to thoroughly read the product description and confirm fitment before placing an order and proceeding with installation.

Unless specified otherwise, all suspension products are designed for 2WD vehicles only. Any notes or descriptions related to electronic damping systems (EDC, DDS, etc.) apply strictly to vehicle fitment. Aftermarket coilovers are not compatible with OEM electronic damping control systems unless explicitly stated.

*Product images may not represent the actual SKU.

Handling Time

All handling times are estimates and may change at any time. If the item is out of stock, we’ll promptly inform you of the estimated wait time and suggest similar in-stock alternatives if you prefer to change the order.

  • In stock: 1 business day
  • Out of stock: TBD

30-Day Returns

Not quite right? No problem — we offer hassle-free 30-day returns on eligible items. A few exclusions apply.

More Information

1-Year Manufacturer Warranty

Swift Springs offers a limited 1-year warranty on their metric coilover springs against defects in materials and workmanship. This warranty applies to springs that are properly installed and used under normal conditions. Swift Springs will repair or replace defective springs at their discretion.

Product Details

Swift Springs Standard Coilover Springs (Barrel Type) in 3.75" ID and 20" length are the longest large-bore barrel springs available from Swift, designed for maximum-travel suspension setups on heavy vehicles and off-road applications using 3.75" ID coilover dampers. These Swift barrel coilover springs are manufactured in Japan from proprietary H5S.TW high-tensile alloy steel, ensuring spring deflection is eliminated even at this extended length.

For over 90 years, Swift Springs has led the industry in precision spring manufacturing. The barrel design is critical at 20" lengths where spring bowing would severely impact rate consistency. Swift Springs coilover springs deliver the increased traction, smoother weight transfer, and predictable handling that competitive racing demands.

Why Racers Choose Swift Springs Coilover Springs

  • Proprietary H5S.TW alloy delivers superior fatigue resistance and consistent spring rates
  • Barrel design eliminates deflection and bowing at extended lengths
  • 20" free length for maximum stroke in long-travel setups
  • Fewer coils reduce unsprung weight
  • Precision-ground flat ends ensure even seating on the perch
  • Trusted by professional racing teams worldwide

Note: Swift Coilover Springs are sold individually. Select your desired spring rate from the options above.

Specifications
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
200-375-200B 200 12.5 14.5 2,906
200-375-300B 300 11.3 13.9 4,169
200-375-350B 350 10.6 13.7 4,809

Customer Reviews

See what customers think of this product.

4.6
Rated 4.6 out of 5 stars
Based on 8 reviews
100%would recommend these products
Write a Review (Opens in a new window)
8 reviews
  • DS
    Dan S.
    Verified Buyer
    Reviewing
    Swift Springs Metric Coilover Springs - ID: 60mm / Length: 8"
    Rated 5 out of 5 stars
    Great springs

    Swift makes great springs. I haven't put these in yet, running different springs now.

    It's a matter of trial and error to get the car balanced.

    The picture is what is in the car now. The helpers are too soft so I bought assist springs as well.

    Was this helpful?
  • G
    Gabby
    Flag of United States
    Verified Buyer
    Reviewing
    Swift Springs Metric Coilover Springs - ID: 65mm / Length: 4"
    Rated 5 out of 5 stars
    Always a customer

    This is my second set of springs from you guys. My car rides exactly how I want it to and lets me get the ride bight I’ve been trying to achieve. I’ll be a customer for as long as I’m modifying cars!

    Was this helpful?
    S Profile picture for Springrates
    Springrates
    3 years ago

    Thanks so much, Gabby! We're thrilled you love them. You can't go wrong with Swift Springs!

  • AS
    Andrew S.
    Flag of United States
    Verified Buyer
    Reviewing
    Swift Springs Coilover Helper Springs (Flat Wire) - ID: 70mm (2.75")
    Rated 4 out of 5 stars
    Good but just one thing

    Very happy with my purchase of the BC racing BR coilovers. They compliment my car and driving style.

    Was this helpful?
  • IM
    Ian M.
    Flag of United States
    Verified Buyer
    Reviewing
    Swift Springs Metric Coilover Springs - ID: 70mm / Length: 6"
    Rated 5 out of 5 stars
    Swift with springs

    Excellent customer service and product. Highly recommend purchasing from this company. Just had my first autocross with the new springs and they performed excellently. Quite happy.

    Was this helpful?
    S Profile picture for Springrates
    Springrates
    3 years ago

    Thanks so much, Ian! Send us some photos of your racing too!

  • T
    Timothy
    Flag of United States
    Verified Buyer
    Reviewing
    Swift Springs Metric Coilover Springs - ID: 70mm / Length: 6"
    Rated 5 out of 5 stars
    As what I expected!!

    Great springs for the price! Made the car feel much more in tuned with the road!

    Was this helpful?
Show More

Questions & Answers

Have a question about fitment, specs, or installation? Ask below — our team is happy to help.
Go