SKU: 31432275758

Supertech Lost Motion Assembly - B-series VTEC

Sale price$97.30 Regular price$108.11
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

Supertech Lost Motion Assembly - B-series VTECSupertech is proud to introduce its Lost Motion Assembly Kits for Hondas B series VTEC engines. Supertech Lost Motion Assemblies will fit any B Series DOHC VTEC engine (Type R GSR B16A, B17A, B18C). The SupertechLost Motion Assembly is an advance spring device that is designed to put pre load on the center portion of the VTEC rocker when it is in the unlocked position (when VTEC mode is disabled). During extended operating conditions, the contaminants

Supertech is proud to introduce its Lost Motion Assembly Kits for Honda’s B-series VTEC engines. Supertech Lost Motion Assemblies will fit any B-Series DOHC VTEC engine (Type-R/GSR B16A, B17A, B18C).

The SupertechLost Motion Assembly is an advance spring device that is designed to put pre-load on the center portion of the VTEC rocker when it is in the unlocked position (when VTEC mode is disabled). During extended operating conditions, the contaminants in the oil will more than likely cause the piston to seize resulting in the VTEC rocker rattling when VTEC is not engaging or when the vehicle is in idle.

Each Supertech Lost Motion Assembly is manufactured exclusively from chrome silicone steel using the latest 3D CAD (Computer Aided Design) modeling and FEA (Finite Element Analysis) to ensure maximum optimization. Each chrome silicone steel spring features a hardened steel and carbide coated tip for added durability. Supertech engineers improved upon other LMA on the market by applying their decades of spring experience to this quality replacement.

The Supertech Lost Motion Assembly (LMA) kit replaces the factory piston-style LMA design with an improved spring design commonly found in newer generation Honda engines. Replacing LMA's are recommended when installing aftermarket camshafts and required when installing high-lift camshafts.

Each Lost Motion Assembly Kit includes a set of 8 assemblies for an entire Honda B-series VTEC engine and are compatible with all camshafts. When using camshafts with +12.5mm lift, LMA's are an absolute must, and Supertech Lost Motion Assembly springs are 3 percent stiffer than ITR springs.

Complete set of 8 LMA springs.

Engine Application: All B-series VTEC engines (B16A/B17A/B18Cx).
No shim/spacers/washers required.
Not compatible with non-VTEC B-series engines

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 31432275758

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Jason Holmes
Alexandria, US
★★★★★ 5
Space Saver
Perfect fit and easy install. Made more space for my desk within minutes.
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Reviewed in the United States on December 5, 2025
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Amazon Customer
Belleville, US
★★★★★ 4
Overall great
I LOVE IT. omg exactly what I was looking for. Easy to set up. The only issue is you have to bend over/kneel to set it up and in the process I got an upset stomach, which is why deducted one star. So if you have bowel issues like me, you might want to consider that with this product.
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Reviewed in the United States on February 3, 2026
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Anthony Armenta
Charlottesville, US
★★★★★ 5
right size for your dock.
Fit perfectly. Everything is nice and neat.
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Reviewed in the United States on December 14, 2025
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Justin B.
New York, US
★★★★★ 5
Sturdy, worked well
Holds it sturdy
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Reviewed in the United States on December 21, 2025
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bms
New York, US
★★★★★ 5
Solid as described
Value for money and easy installation
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Reviewed in the United States on October 4, 2025

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