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  3. SYNCHROTECH SO-120A

SYNCHROTECH SO-120A Hardened Sleeve Ls 3/4 B18A B18B

fits model: Integra.

So-120a Synchrotech Hardened Sleeve 3-4 Integra B18a B18b Ls B-series

( Brand: Synchrotech ), ( Manufacturer Part Number: SO-120A ), ( Part Type: Sleeve )

Review SYNCHROTECH Hardened Sleeve 3-4 Ls B series fits INTEGRA

The Synchrotech SO-120A Hardened Sleeve is a high-performance upgrade for the crankshaft damper found in various Honda B-Series engines, including the Integra B18A and B18B, as well as the LS engines. This product is engineered to provide superior vibration damping and engine protection, making it an essential modification for those seeking maximum performance and durability from their B-Series engine.

The SO-120A Hardened Sleeve is manufactured using advanced materials and manufacturing techniques. The sleeve is made of a proprietary alloy that offers increased strength and durability compared to OEM components. This alloy is able to withstand the extreme forces generated by high-performance engines, ensuring that the damper remains effective even under the most demanding conditions.

One of the key features of the Synchrotech SO-120A Hardened Sleeve is its hardened surface treatment. This treatment provides an additional layer of protection against the damaging effects of engine heat and vibration. The hardened surface is also more resistant to wear and tear, ensuring that the sleeve maintains its performance over time.

The SO-120A Hardened Sleeve is designed to be a direct replacement for the OEM damper sleeve. The installation process is straightforward and can be completed using standard hand tools. No engine disassembly is required, making this upgrade a cost-effective and convenient option for performance enthusiasts.

The Synchrotech SO-120A Hardened Sleeve is not just an upgrade for racing applications. It also offers significant benefits for daily driven cars and high-mileage engines. By reducing crankshaft vibration and protecting the damper from wear and tear, this upgrade can help improve engine reliability and longevity.

In summary, the Synchrotech SO-120A Hardened Sleeve is a high-quality, performance-enhancing upgrade for the crankshaft damper found in various Honda B-Series engines. Its advanced materials, hardened surface treatment, and straightforward installation process make it an essential modification for those seeking maximum performance and durability from their engine.

The Synchrotech SO-120A Hardened Sleeve is an aftermarket product designed to improve the performance and durability of the crankshaft in certain Honda B-Series engines, including the B18A, B18B, and LS variants used in the Integra model. Here are some potential pros and cons of buying this product:

Pros:

1. Enhanced engine performance: The SO-120A Hardened Sleeve is designed to reduce crankshaft deflection and vibration, leading to improved engine performance, increased power, and better fuel efficiency.

2. Improved durability: The hardened steel sleeve provides additional protection to the crankshaft, reducing the risk of damage from wear and tear.

3. Cost-effective: Compared to a full engine rebuild or replacement, the SO-120A Hardened Sleeve is a more cost-effective solution for improving engine performance and durability.

4. Easy installation: The installation process is relatively straightforward and can typically be completed in a few hours with basic hand tools.

Cons:

1. Cost: While the SO-120A Hardened Sleeve is more cost-effective than a full engine rebuild or replacement, it still represents a significant investment for some enthusiasts.

2. Requires engine removal: To install the SO-120A Hardened Sleeve, the engine must be removed from the vehicle, which can be a time-consuming and labor-intensive process.

3. Not a universal solution: The SO-120A Hardened Sleeve is not a universal solution and is only compatible with certain Honda B-Series engines.

4. Potential for additional wear: The installation process involves removing the factory crankshaft damper, which may result in additional wear on the engine over time.

Conclusion:

The Synchrotech SO-120A Hardened Sleeve is an effective solution for improving engine performance and durability in certain Honda B-Series engines. While it represents a significant investment, it is a more cost-effective alternative to a full engine rebuild or replacement. However, it does require engine removal for installation and may not be a universal solution for all Honda B-Series engines. Ultimately, the decision to purchase the SO-120A Hardened Sleeve depends on individual needs, budget, and priorities.

Recommendation:

If you own a Honda Integra with a B18A, B18B, or LS engine and are looking to improve engine performance and durability, the Synchrotech SO-120A Hardened Sleeve is a worthwhile consideration. However, it is essential to carefully weigh the pros and cons and ensure that it is the right solution for your specific situation. Before making a purchase, consider consulting with a professional mechanic or experienced Honda enthusiast to help determine if the SO-120A Hardened Sleeve is the best option for your needs and budget.

Details:

I bought this for my transmission thinking it was a stock ls grinds 3rd since so never got chance to rip turns out its type r and wasted money buying sleeve brand new in box directly from Necrotic.

part #: so120a prices

  • $129.95-$239.99

specifications manutransmission:

  • for models: Integra
  • brand: Synchrotech
  • mpn: So-120a
  • part type: Sleeve

shipping manutransmission:

  • cost: $0.00
  • carrier: USPS
  • transit: 4-11 Days
  • service: USPS Priority Mail
  • type: Calculated
  • class: Expedited

payments manutransmission:

  • wallet: Google-pay
  • credit card: Visa
  • other

offer manutransmission:

  • sold: 0
  • availability: In Stock
  • started: August 24, 2025
  • options: Ship-to-home
  • quantity: 1

returns manutransmission:

  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days

seller manutransmission:

  • rating: 100.0%
  • city: Kenilworth, New Jersey
  • # reviews: 97

general manutransmission:

  • condition: New
  • Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts
for models: integra, part type: sleeve,
category: auto parts > car truck parts accessories > transmission drivetrain > manual transmission parts, sku: 7630591232515781,

Synchrotech SO-120A Is Similar To:

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5 offers $129.95–$239.99 USD
  • Offer #1: $129.95 price + $0.00 shipping estimate = $129.95* total. Synchrotech 3rd - 4th Hardened Sleeve for 1992-2001 Acura Integra RS, LS, GS - , Transmissions.FREE SHIPPING
  • Offer #2: $239.99 price + $0.00 shipping estimate = $239.99* total. Fitting Honda and Acura B series Transmissions 1992-2001 Integra LS, RS, and GS, S80 ( ), Y80 ( ), YS1 ( ).FREE SHIPPING
  • Offer #3: $230.95 price + $13.59 shipping estimate = $244.54* total. Sleeve set will fit only B series LS transmissions with the case ID of "S80" "Y80" and "YS1". Honda Acura Integra LS RS GS 3-4 Carbon Synchros Springs and Sleeve.+$13.59 shipping
  • Offer #4: $173.20 price + $0.00 shipping estimate = $173.20* total. Also Fitting: JDM YS1 (Honda Integra XSI & RSI), Honda Civic B16 - S80, YS1, Y21, or S4C Cases. Synchrotech Transmissions 1st-2nd Hardened Sleeve for 1990-1993 Acura Integra LS, GS, RS - , 1.FREE SHIPPING
  • Offer #5: $169.95 price + $0.00 shipping estimate = $169.95* total. 1992-2001 Acura Integra RS, LS, GS - , Transmissions. Synchrotech Transmissions 5th Gear Carbon Synchro Sleeve Set for Includes: 5th Hardened Sleeve, Spring, and Carbon Synchro.FREE SHIPPING

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