SONNAX 22301B-01K Gear Hold Servo Kit 2ND A518 46RE 46RH A618 47RE 47RH 48RE A727

( Brand: Sonnax ), ( Manufacturer Part Number: 22301B-01K ), ( Part Type: Servo Gear )

Review SONNAX 2nd Gear Super Hold Servo Kit

Sonnax 22301B-01K 2nd Gear Hold Servo Kit (Applies to A518, 46RE, 46RH, A618, 47RE, 47RH, A727, 48RE Transmissions)

The Sonnax 22301B-01K 2nd Gear Hold Servo Kit is an essential upgrade for select automatic transmissions, including A518, 46RE, 46RH, A618, 47RE, 47RH, A727, and 48RE models. This kit enhances the performance and durability of your transmission system by upgrading the factory 2nd gear servo with a stronger and more robust aftermarket alternative.

This servo kit is designed to provide improved 2nd gear hold, ensuring a smoother driving experience, particularly during steep inclines or when towing heavy loads. By bolstering the grip of the 2nd gear, the Sonnax 22301B-01K kit helps reduce slippage and provides quicker gear engagement.

The Sonnax 2nd Gear Hold Servo Kit is meticulously engineered with high-quality materials and precise manufacturing processes. The servo component is manufactured from durable, heat-treated steel, ensuring long-lasting performance and resistance to wear and tear. Additionally, it features an upgraded seal design that minimizes leaks and maintains optimal transmission fluid pressure.

Installation of the Sonnax 22301B-01K 2nd Gear Hold Servo Kit is a straightforward process, making it an ideal upgrade for both professional mechanics and DIY enthusiasts. The kit includes all necessary components, including the servo, mounting hardware, and detailed installation instructions.

By upgrading your transmission with the Sonnax 22301B-01K 2nd Gear Hold Servo Kit, you can enjoy enhanced driving performance, increased reliability, and improved towing capabilities. This kit is an excellent investment for anyone seeking to optimize their vehicle's performance and ensure a more enjoyable driving experience.

Sonnax 22301B-01K 2nd Gear Hold Servo Kit: A Comprehensive Analysis

The Sonnax 22301B-01K 2nd Gear Hold Servo Kit is designed to address the issue of 2nd gear slippage in automatic transmissions, specifically for vehicles with A518, 46RE, 46RH, A618, 47RE, 47RH, 48RE, and A727 transmissions. In this analysis, we will explore the potential benefits and drawbacks of investing in this servo kit.

1. Improved Gear Hold: The primary function of this servo kit is to improve the 2nd gear hold, ensuring a smoother driving experience and reducing the likelihood of slipping or jumping gears.

2. Enhanced Durability: By addressing the issue of 2nd gear slippage, the servo kit can help prolong the life of the transmission itself, potentially saving vehicle owners from expensive repairs or replacements down the line.

3. Easier Installation: Sonnax claims that their servo kit can be installed with basic hand tools, making it a relatively straightforward and hassle-free upgrade for many vehicle owners.

4. Backed by a Reputable Brand: Sonnax is a well-known and respected name in the automotive aftermarket industry, providing peace of mind for those who choose to invest in their products.

1. Cost: The Sonnax 22301B-01K 2nd Gear Hold Servo Kit is not an inexpensive upgrade, which may deter some vehicle owners from considering it as an option.

2. Potential Compatibility Issues: While the kit is designed for a range of transmission models, there have been reports of compatibility issues with certain vehicles, making it essential to verify compatibility before making a purchase.

3. Additional Maintenance: Installing the servo kit does not eliminate the need for regular transmission maintenance, and vehicle owners should continue to follow their recommended maintenance schedule to ensure the longevity of their investment.

The Sonnax 22301B-01K 2nd Gear Hold Servo Kit offers a potential solution for those experiencing 2nd gear slippage in their automatic transmission vehicles. While the cost may be a deterrent for some, the benefits of improved gear hold, enhanced durability, and the peace of mind that comes with a reputable brand may outweigh the initial investment. However, it is crucial for vehicle owners to verify compatibility with their specific transmission model before making a purchase.

If you own a vehicle with a compatible transmission model and are experiencing 2nd gear slippage, the Sonnax 22301B-01K 2nd Gear Hold Servo Kit could be a worthwhile investment to improve your driving experience and potentially save on future transmission repairs or replacements. Ensure you verify compatibility and consider the cost before making your decision.

Details:

Note:: For details on shift timing and overlap, please refer to the included instructions. Reduces leakage by 15% compared to other designs. The exclusive Sonnax design incorporates rubber and PTFE seals for superior sealing protection against case wear, resulting in enhanced holding force 2nd gear, firmer 1-2 shifts, more consistent 2-3 shifts under load. Kit Contents:: Cover.

Seals may be black or white. Provides 16% more apply area for increased band holding power. Key Features: Simple installation significantly improves 1-2 and 2-3 shift quality. This kit features the largest and most leak-resistant servo available for these units, eliminating need aggressive lever ratios, excessively high line pressure, or other extreme modifications to achieve firmer shifts.

Retaining Ring. Constructed from anodized aluminum for enhanced durability.

part #: 22301b01k prices

• $48.15-$116.00

specifications motoralph:

• brand: Sonnax
• mpn: 22301b-01k
• part type: Servo Gear

returns motoralph:

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

offer motoralph:

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

seller motoralph:

• city: Miami, Florida
• # reviews: 502
• rating: 98.7%

general motoralph:

• Motors > Parts Accessories > Other
• condition: New

shipping motoralph:

• transit: 4-11 Days
• service: Expedited
• type: Fixed
• class: Expedited
• cost: $0.00

payments motoralph:

• wallet: Apple-pay
• credit card: Diners-club
• other

Sonnax 22301B-01K Is Similar To:

• Sonnax 104960-10k Apply Piston Kit 4th-5th-6th Clutch High Capacity 6l80 6l90 (34.1% similar) Contents: backing plate. The Sonnax kit features a re designed apply piston and dam, along with specially engineered toothed plate. This plate replaces the OE waved and allows direct contact with a friction to increase surface area distribute pressure more evenly across clutch pack...(February 3rd, 2026)