ZF 6 Speed Transmission Sale
ZF 6 Speed S6650
ZF 6 Speed S6750
ZF 6 Speed S6-650
ZF 6 Speed S6-750

Performance Built Ford ZF 6 Speed Manual Transmission Sale

Finding a transmission with unparalleled performance and reliability comes down to technology and experience. Our ZF 6 Speed transmissions are certain to provide you with both.

Every performance built ZF 6 Speed has been remanufactured at our state of the art facility using the latest advancements in aftermarket technology. We have carefully engineered a process that allows a Ford ZF 6 Speed rebuild to maximize performance and durability while staying within a wholesale price range.

When buying a ZF 6 Speed transmission from Smart Parts Automotive you can rest assured that you will get the same quality and workmanship that has made us an industry leader in the rebuilt auto parts market. Wether your replacing a broken unit or doing a custom upgrade, you want to make sure that your hard earned money buys you a product that has been built by a team of transmission experts.

This ZF 6 Speed is a direct replacement for Ford F Series Superduty trucks requiring a 6 speed manual transmission. Our site contains detailed application information allowing you to ensure an exact fit for your vehicle.


Transmission Names
  • ZF 6 SPD
  • S6-650
  • S6650
  • S6-750
  • S6750
Transmission Codes
  • GM RPO-ML6
  • Ford-S6
Ford Vehicles
  • F250 Super Duty Pickup
  • F350 Super Duty
  • F450 Super Duty
  • F450 Super Duty
GM Vehicles
  • Serra 2500HD Pickup
  • Serra 3500
Chevy Vehicles
  • Silverado 2500HD Pickup
  • Silverado 3500
Years Covered
  • 1998, 1999
  • 2000, 2001
  • 2002, 2003
  • 2004, 2005
  • 2006, 2007
  • 2008,
Upgraded ZF 6 Speed Parts
  • Main Shaft
  • Synchronizer rings
  • Seal
  • Bearing
  • Ordering
  • Details
  • ZF 6 Speed Build
ZF 6 Speed Sale Price: $1,875.00
List Price: $2,395.00
Core Deposit: $500.00
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Delivery/Core Shipping: Call for Quote
Sales Tax Applied 0%
5 Star product Rating: ★★★★★
PN: B6SPDP  
Phone Order: 1-888-995-7278 Mon-Sun 8-9 CST
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Warranty Info

Manual ZF 6 Speed or S6-650 Transmission Applications

F250, F350, F450, F550, Super Duty 4X2 / 1999 and up
Engine Years Tag Number
5.4L / 330 2002 and up ID 1C34-BD
6.8L / 415 2002 and up ID 1C34-BD
6.0L Diesel 2003  
7.3L Diesel 1999-2000 ID F81A-CD, CE, CF, CG
ID 1319-050-004
ID 1319-050-005
ID 1319-050-022
7.3L Diesel 2001 and up ID 1C34-BA, BB, BC, BD
ID 1319-050-024
 
F250, F350, F450, F550, Super Duty 4X4 / 1999 and up
Engine Years Tag Number
5.4L / 330 2001 and up  
6.8L / 415 2001 and up  
6.0L Diesel 2003 ID 1C34-CD
7.3L Diesel 1999-2000 ID F81A-DD, DE, DF, DG
ID 1319-050-002
ID 1319-050-025
ID 1319-050-023
7.3L Diesel 2001 and up ID 1C34-CA, CB, CC, CD
ID 1319-050-025
 
Chevrolet Silverado 2500 4X2 / 1999 and up
GMC Sierra 2500 4X2 / 1999 and up
Engine Years Tag Number
6.6L, 8.1L 2001 and up ID GBLT
6.6L, 8.1L 2003 ID GBSN
 
Chevrolet Silverado 2500 4X4 / 1999 and up
GMC Sierra 2500 4X4 / 1999 and up
Engine Years Tag Number
6.6L, 8.1L 2001-2002 ID GBSP
6.6L, 8.1L 2003 ID DKX
 
Chevrolet Silverado 3500 4X2 / 2001 and up
GMC Sierra 3500 4X2 / 2001 and up
Engine Years Tag Number
6.6L, 8.1L 2001 and up ID GBLT
6.6L, 8.1L 2003 ID GBSN
 
Chevrolet Silverado 3500 4X4 / 2001 and up
GMC Sierra 3500 4X4 / 2001 and up
Engine Years Tag Number
6.6L, 8.1L 2001 and up ID GBSP
6.6L, 8.1L 2003 ID DKX
 
ZF 6 Speed specs and current transmission data
Original Manufacturer: ZF Friedrichshafen AG (Germany)
Gears: Manual / 6 Speed
Drive: 2WD and 4WD Available
Oil / Fluid Capacity: 6.0L / 6.43 qt
Recommended Oil Type: Synthetic ATF
Dry Weight: Aprox 235
S6-650 Torque Rating: Manufacturer: 520 lb-ft
Our transmissions during testing have handled: 650 lb-ft +
Cargo Handling Weight: 26,000 lbs
Case Material: Mostly Aluminum
Engine Type: 1998-2008: Powerstroke
2001-2006: Duramax
PTO: Passenger Side

ZF 6 Speed Trans features

  • The ZF S6650 heavy Duty 6 speed manual transmission has an aluminum alloy main gear case and tail housing with the bell housing integral to the case.
  • The ZF S6650 is built in both a 2 wheel drive and 4 wheel drive versions with a diesel design only.
  • ZF first introduced the S6-650 in 1998 on the Ford Super Duty and compatible stripped chassis’s.
  • The S6-650 has an internal oil pump to circulate and cool the lubricant which is unique to a manual transmission. This is a feature that is rarely seen in other models.
  • All gears on are synchronized with a dual cone synchronizer in 2nd and 3rd gears with an input torque rating of over 520 ft-lb.
  • Be aware that your stick shift layout may show five speeds and a low gear before the first, or it may display reverse and six forward gears. Either of these shift patterns confirm a six speed.

Every ZF 6 Speed transmission goes through an extensive building process

Dyno-Tested
Every manual ZF 6 Speed has been run on a state of the art Dyno. A Dyno simulates the conditions encountered by a transmission during every day and extreme use. This ensures that when your part arrives, it will have been rigorously tested for noises, leaks, vibrations and performance. Any part that does not meet our strict guidelines will be completely disassembled and gone through until our quality requirements have been restored.

OEM
It can be hard to find good ZF 6 Speed parts and rebuild kits, so leave it to the pro's. We buy top of the line remanufacturing materials in bulk. Purchasing large quantities allows us to spend much less giving us the ability to pass the savings down to our customers. OEM stands for Original Equipment Manufacturer. Our parts meet or exceed the guidelines set forth by the manufacturer.

Upgrades
Our many years in the transmission rebuilding business have given us a distinct advantage in finding ways to improve the power handling and longevity of every unit we sell. After sorting through core after core of broken and heavily used ZF 6 Speed transmissions, our engineers were able to notice trends in wear patterns and failure points. We have developed a rebuild process that utilizes the knowledge of extensive research. Our method of improvement entails implementation of parts that have shown increased reliability under rigorous testing. Crucial design upgrades have also been added to fix inherent flaws from the original manufacturer. Our system has created a product that in most cases outlasts new units fresh from the factory

Certified
Every remanufactured ZF 6 Speed transmission has been built and inspected by a certified re builder. Our technicians have an average experience of 10 years or more. In order to preserve consistency and ensure your unit has been worked on by an expert, we assign every one of our workers with a specific model to specialize in.

New Parts
Wearable parts are replaced, this includes: seals, bearings, synchronizers, rings, bushings, bands, gaskets, keys, and much more.

Inspection
The final process before shipment is a complete inspection of the entire unit from top to bottom. If something is found during our inspection process, you can rest assured that your remanufactured ZF 6 Speed will not ship out until even the smallest of inconsistencies are addressed.

What is a core deposit?

In order to keep our ZF 6 Speed Transmission at such an unbelievably low price, we need to take a deposit on your old or broken unit being sent back to us. The core deposit is added to your total then is completely refunded when it unit arrives at our facility. Because we use so many new parts, our rebuild process doesn't require a perfect core to be sent back. Please call or click on the tab for acceptable core conditions and details.

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To ensure a correct fit for your vehicle, call us toll free.
1-888-995-PART or 1-888-995-7278

Sales Office Hours:
7 days a week, 8:00am to 9:00pm CST.
Holiday hours vary.

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