first gear MFactory 3.130 Long First Gear for all Honda / Acura K Series (K20, K24)  Transmissions
SKU: 65183919453
first gear

first gear MFactory 3.130 Long First Gear for all Honda / Acura K Series (K20, K24) Transmissions

Sale price$18.09 Regular price$20.10
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  • USA
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Ships within 48 hours · Estimated delivery Jul 2 - Jul 7

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Description

first gear MFactory 3.130 Long First Gear for all Honda / Acura K Series (K20, K24) TransmissionsMFactory 3. 130 Long First Gear for all Honda Acura K Series (K20, K24) Transmissions *Note: This gear is a replacement gear for the MFactory gear sets MF TRS 01KX or MF TRS 01KSD or MF TRS 01KSC. MF TRS 01K will not work with an OEM main shaft* Achieve the ultimate in acceleration with the MFactory Close Ratio Gears. Diamond Cut to exacting tolerances from fully Carburized Forged Nickel Chromoly Steel and put through our own proprietary heat

MFactory 3.130 Long First Gear for all Honda / Acura K Series (K20, K24) Transmissions

*Note: This gear is a replacement gear for the MFactory gear sets MF-TRS-01KX or MF-TRS-01KSD or MF-TRS-01KSC. MF-TRS-01K will not work with an OEM main shaft*

Achieve the ultimate in acceleration with the MFactory Close Ratio Gears.

Diamond Cut to exacting tolerances from fully Carburized Forged Nickel-Chromoly Steel and put through our own proprietary heat treatment process, you will not find a stronger, more reliable product on the market. Our special treatment process makes our gears several times stronger & tougher than OEM Gears and are specifically designed to endure the demanding requirements of high-power track/drag cars.

- Made from imported Japanese Steel

- Forged and Cryo

-Tempered for unsurpassed toughness

- Advanced Shot Peening technology increases surface hardness

- Advanced gear geometry designed using industry-leading software puts more power to the ground

Transmission Fitments: K20A, K20A2, K20A3, K20Z1, K20Z3, K24A1, K24A2, K24A4

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: 65183919453

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L&S
Waukegan, US
★★★★★ 5
Impressive High-Tech Cabin Filter That Actually Eliminates Odors
This is by far the most advanced cabin filter I’ve ever used. My 2017 Civic came with a lingering interior smell that even a full professional detail couldn’t remove—but this filter did the trick almost immediately. The design is impressive, with a sturdy outer “shell” and clear labeling that makes installation quick and foolproof. It has a very modern, high-tech look, and the airflow direction is easy to identify. The fit is spot-on, and the performance has genuinely exceeded my expectations. I’m so impressed that I plan to switch my other vehicles over to this same style of filter in the future.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 18, 2025
A
Verified Purchase
Alex
Pawtucket, US
★★★★★ 5
Easy change, Great deal.
Size: HRV (2023-26) 2.0L Gas
Great fit for my 2024 HR-V. Easy replacement, no tools needed. Would definitely purchase again. Saved from paying outrageous pepboy fee. Could feel and smell the difference immediately after. No more allergies.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
R
Verified Purchase
RJR
Birmingham, US
★★★★★ 5
Good feal
Size: HRV (2016-22) 1.8L Gas
Just get these.Easy to install and will save you stupid labor costs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
V
Verified Purchase
vincentimac
Lowell, US
★★★★★ 5
Honda wanted $150+ to replace these...
Size: HRV (2023-26) 2.0L Gas
These are exact fits for my honda 2025 Honda H-RV. It was super easy to install and took me less than 5 minutes to replace my old ones and put these in. Car smells clean and no debris in the intake! Seems to be good quality (been 1 week so far)
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Reviewed in the United States on January 8, 2026
A
Verified Purchase
Arthur
Houston, US
★★★★★ 5
Cabin and air filter installed.
Size: HRV (2016-22) 1.8L Gas
Part fit perfect and easy to install myself. Great value and saved a lot of money installing it myself. It took five minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2026

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