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AFTERMARKET PRODUCTS Reverse Synchronizer Zf Gas Sbf SPD/ZF42-40

Zf42-40 Aftermarket Products Reverse Synchronizer Assembly/zf/s542/gas/diesel/sbf/bbf/5 Spd/zf42-40

( Brand: Aftermarket Products ), ( Manufacturer Part Number: ZF42-40 ), ( Part Type: Reverse ), ( Oe/oem Part Number: 1307-204-239, F0tz7124c ), ( Country Of Origin: Taiwan )

Review AFTERMARKET PRODUCTS Reverse Synchronizer Assembly/zf/s542/gas/diesel/sbf/bbf/5 Spd/zf42-40

The ZF 42-40 Reverse Synchronizer Assembly is a crucial component in the powertrain system of various vehicles, specifically those equipped with ZF S5-42, S6-42, S6-42B, or S8-42 transmission systems. This assembly functions primarily to ensure the proper engagement of the reverse gear in both gasoline and diesel engines, as well as in manual and automatic SBF (Synchro-Bloc Front) and BBF (Synchro-Bloc Rear) five-speed transmissions.

The ZF 42-40 Reverse Synchronizer Assembly consists of several key components. The reverse idler gear, which is the primary component responsible for engaging the reverse gear, is designed with robust materials to handle the high torque and loads that come with the transmission system. The synchronizer rings, which facilitate smooth gear shifts between forward and reverse gears, are engineered with precision to minimize friction and wear. The bearings, which support the rotating components, are manufactured with high-quality steel to ensure longevity and durability.

This assembly also features a reverse shift fork, which plays a vital role in the engagement of the reverse gear. The fork interacts with the shift dogs in the transmission to properly align the gears and ensure a positive engagement. Additionally, the assembly includes a reverse shift drum, which houses the synchronizer rings and provides a surface for the reverse idler gear to engage.

The ZF 42-40 Reverse Synchronizer Assembly is designed and manufactured to meet the highest standards of quality and performance. It is engineered to provide reliable and efficient operation, minimizing the risk of transmission damage or failure. This assembly is an essential component for any vehicle with a ZF S5-42, S6-42, S6-42B, or S8-42 transmission system, making it a must-have for both professional mechanics and DIY enthusiasts.

The ZF 42-40 reverse synchronizer assembly is a crucial component in manual transmission systems for both gas and diesel engines, particularly those using S542, SBF, or BBF designations and featuring a 5-speed gearbox. Here, we will discuss the pros and cons of purchasing this assembly to help you make an informed decision.

Pros:

1. Improved Shift Quality: A new reverse synchronizer assembly can lead to smoother and more precise gear shifts, enhancing the overall driving experience.

2. Reduced Wear and Tear: Over time, the reverse synchronizer components can wear down, leading to potential issues. A new assembly can help reduce the risk of future problems and the need for costly repairs.

3. Enhanced Durability: A high-quality reverse synchronizer assembly can provide increased durability compared to OEM (original equipment manufacturer) parts, ensuring that the component lasts longer.

Cons:

1. Cost: The price of a new reverse synchronizer assembly can be relatively high, which may deter some buyers.

2. Installation Complexity: Installing the assembly yourself can be a complicated process, requiring specialized tools and knowledge. It may be more cost-effective to hire a professional.

3. Potential for Compatibility Issues: Ensure that the reverse synchronizer assembly you purchase is compatible with your specific transmission system to avoid any potential issues.

In conclusion, the decision to buy a new ZF 42-40 reverse synchronizer assembly depends on various factors, including the condition of your current assembly, your budget, and the level of expertise you have in installing the new component. If your current assembly is causing problems, resulting in rough shifts, or if you prefer the peace of mind that comes with a new, durable component, investing in a new reverse synchronizer assembly may be worthwhile. However, if your current assembly is functioning properly and you're on a tight budget, it might be more prudent to keep using it. Ultimately, careful consideration of your specific circumstances will help you make the best decision for your vehicle.

Recommendation:

If you experience issues with your reverse synchronizer assembly or want to upgrade to a more durable component, consider purchasing a high-quality new or remanufactured ZF 42-40 reverse synchronizer assembly. Ensure that you check its compatibility with your transmission system before making a purchase and consider hiring a professional for installation to minimize potential complications.

Details:

FITS ALL SBF/BBF/DIESEL S542 model's. NEW 5TH/REVERSE SYNCHRONIZER SLIDER HUB FOR A FORD ZF S-542 5 SPEED TRANSMISSION.

part #: zf4240 price

  • $53.11

specifications manutransmission:

  • brand: Aftermarket Products
  • mpn: Zf42-40
  • part type: Reverse
  • oe/oem part number: 1307-204-239, F0tz7124c
  • country of origin: Taiwan

shipping manutransmission:

  • service: USPS Priority Mail
  • cost: $13.00
  • class: Expedited
  • type: Fixed
  • carrier: USPS
  • transit: 4-7 Days

payments manutransmission:

  • other
  • wallet: Paypal
  • credit card: Visa

general manutransmission:

  • condition: New
  • Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts

offer manutransmission:

  • availability: In Stock
  • quantity: 1
  • started: February 19, 2026
  • sold: 0
  • options: Ship-to-home

seller manutransmission:

  • # reviews: 3663
  • city: Tavares, Florida
  • rating: 100.0%

returns manutransmission:

  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days
part type: reverse, oe/oem part number: 1307-204-239, f0tz7124c, country of origin: taiwan,
category: auto parts > car truck parts accessories > transmission drivetrain > manual transmission parts, sku: 11201639606570881,

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