Mustang Tremec T45 Transmission

Original price was: $2,695.00.Current price is: $1,795.00.

You can’t beat the pricing on our Tremec T45 Transmission sale. The T45 was first introduced in 1996, it was the long-awaited workhorse for Mustang GT and Cobras with a 4.6 liter engine. This transmission was originally introduced by Borg Warner, later the company was bought by Tremec. During the change of companies, a few slight design modifications were creating the world-class T45. The world-class model offers a few upgrades and an increased torque handling capacity. Here at Smart Parts we continued the tradition and addressed even more design flaws and continued adding upgrades. Our T45s are not only built with world-class specs, we have even taken them a step beyond.

Core Deposit: $250.00 to $750.00

Due to high demand and application-specific variables, we require customers to call prior to placing an order. This allows us to verify vehicle compatibility, confirm core details, and ensure your order is processed accurately.

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Quick Info SKU: T45-BTM Categories: Tag:

Description

OEM REPLACEMENT

Borg Warner and Tremec T45 Transmission

A common question we get asked by Mustang enthusiasts is whether they have a Borg Warner are Tremec T45 transmission in their vehicle. The easiest way to tell is by looking at your transmission, the stamp of the manufacturing company should be right on the casing. If you're wondering why two different companies make this transmission the answer is easy. BorgWarner originally designed the T45. During its years of production, BorgWarner was bought by Tremec. Later Tremec made a few changes to the design and increase the torque and capacity creating the world class T45. Which can be found in all late model Mustang GT and Cobras. Here at Smart Parts we don't know how to build bad Transmissions so even earlier models have been upgraded to world-class specs, we have even thrown in a some of our own upgrades to increase reliability, torque handling and longevity.

Transmission Description

Additional information

Weight104 lbs
Vehicle Model / Series

,

Condition

Core Deposit

,

Vehicle Year

, , , , ,

Engine Size

Make Manufacturer

,

Included Upgrades

Patented strut / Dual cone synchronizer, bearings, Internal single rail shifter, multiple location shifter, linkage, seals, Improved shift design, Constant mesh synchronized reverse, Tapered roller bearings

Build Type

Compatible Models

Ford Mustang GT and Cobra

Tag Number

Transmission Type

Testing

Torque Rating

Note

Alternate Names

Core Deposit

Why a Core Deposit Is Required

This product is sold with a refundable core deposit. The deposit is required to ensure the return of a rebuildable core, which allows us to recycle materials and reuse non-wear components during the remanufacturing process. This helps keep overall product costs competitive.

How the Core Deposit Is Charged

The core deposit is added to your order total at the time of purchase. Once your returned core is received and inspected at our facility, the deposit is refunded according to the payment method used for the original purchase.

Core Return Timeframe

To receive a full core deposit refund, the core must be received within 30 days of delivery. Cores returned after this period may be subject to reduced refunds or additional fees. Any return extensions must be approved by a sales manager in advance.

Core Refund Processing Time

Core deposit refunds are typically processed within 1–3 weeks after the core is received and inspected. Credit card refunds are issued to the original card. Check payments are refunded by mail. If you have not received your refund within three weeks, please contact us to confirm receipt.

How to Return Your Core

In most cases, your order will include a shipping document known as a Bill of Lading. You or your repair facility may return the core with the delivery driver, if applicable, or schedule a pickup directly with the shipping carrier using the phone number listed on the Bill of Lading. It is important to use the provided shipping documentation to avoid being billed directly by the carrier. If your order did not include return shipping information, please use the core return link below and follow the instructions provided.

Missing or Non-Returnable Cores

If a core is not available for return, the core deposit is retained and becomes part of the final purchase price. In these cases, only one-way shipping is required. If inventory for a specific core becomes limited, additional core charges may apply. In rare situations, products may not be available for sale without a core exchange.

Sending a Core Before Shipment

For manual transmissions, engines, and transfer cases, customers may send their core in advance. This option may extend overall turnaround time but eliminates the need to pay a core deposit. Only the product price and shipping charges will apply.

Acceptable Core Condition

To qualify for a full core deposit refund, returned cores must not have excessive damage, such as melted or cracked cases. If you are unsure whether your core meets return requirements, please contact our team before shipping.

Questions About Core Returns?

For assistance with core deposits or return eligibility, please contact our support team at (888) 995-7278.

Ready to Return a Core?

Use the link below if you did not receive return information and would like to schedule a core pickup with our shipping department.

Schedule Pickup

Warranty

Platinum 1-Year Unlimited Mileage Nationwide Warranty
Coverage Details:
  • This warranty provides coverage for manufacturing-related defects applicable to this product.
  • This is a nationwide warranty valid throughout the continental United States.
  • No restocking or return shipping fees are charged on approved warranty claims. Restocking and shipping fees may apply only when a customer requests a return for a non-defective transmission or when the return originates outside the continental United States.
  • This warranty includes unlimited mileage coverage during the warranty term.
  • The warranty period begins on the original date of purchase and remains valid for one (1) year.
This Warranty Does Not Cover:
  • Use of the engine, clutch, transfer case, driveline, and/or differential for purposes other than those for which the vehicle was originally designed, including off-road or racing applications.
  • Damage resulting from abuse, neglect, accident, or improper towing.
  • Improper installation or maintenance, including failure to fill the unit with the correct fluid and maintain proper fluid levels.
  • Costs related to towing, vehicle rental, or transportation.
  • Loss of time, inconvenience, loss of vehicle use, commercial loss, or consequential damages.
  • Failures caused by defects or inefficiencies in components or assemblies not supplied with the transmission, including but not limited to flywheels, clutches, or driveshafts.
  • Broken gears or shafts.
  • Cracked or damaged transmission cases.
  • Labor reimbursement and consequential damages are not included under this warranty.
  • Damage, defects, injury, or loss resulting from misuse or negligence.
  • The unit must be returned for inspection to determine warranty eligibility and fault.
Warranty Process:

In the event of a part-related issue, please contact our warranty department for assistance with the claims process. A representative will guide you through the required steps. Warranty support can be reached at (888) 995-7278.

Description

OEM REPLACEMENT

Borg Warner and Tremec T45 Transmission

A common question we get asked by Mustang enthusiasts is whether they have a Borg Warner are Tremec T45 transmission in their vehicle. The easiest way to tell is by looking at your transmission, the stamp of the manufacturing company should be right on the casing. If you're wondering why two different companies make this transmission the answer is easy. BorgWarner originally designed the T45. During its years of production, BorgWarner was bought by Tremec. Later Tremec made a few changes to the design and increase the torque and capacity creating the world class T45. Which can be found in all late model Mustang GT and Cobras. Here at Smart Parts we don't know how to build bad Transmissions so even earlier models have been upgraded to world-class specs, we have even thrown in a some of our own upgrades to increase reliability, torque handling and longevity.

Transmission Description

Additional information

Weight104 lbs
Vehicle Model / Series

,

Condition

Core Deposit

,

Vehicle Year

, , , , ,

Engine Size

Make Manufacturer

,

Included Upgrades

Patented strut / Dual cone synchronizer, bearings, Internal single rail shifter, multiple location shifter, linkage, seals, Improved shift design, Constant mesh synchronized reverse, Tapered roller bearings

Build Type

Compatible Models

Ford Mustang GT and Cobra

Tag Number

Transmission Type

Testing

Torque Rating

Note

Alternate Names

Core Deposit

Why a Core Deposit Is Required

This product is sold with a refundable core deposit. The deposit is required to ensure the return of a rebuildable core, which allows us to recycle materials and reuse non-wear components during the remanufacturing process. This helps keep overall product costs competitive.

How the Core Deposit Is Charged

The core deposit is added to your order total at the time of purchase. Once your returned core is received and inspected at our facility, the deposit is refunded according to the payment method used for the original purchase.

Core Return Timeframe

To receive a full core deposit refund, the core must be received within 30 days of delivery. Cores returned after this period may be subject to reduced refunds or additional fees. Any return extensions must be approved by a sales manager in advance.

Core Refund Processing Time

Core deposit refunds are typically processed within 1–3 weeks after the core is received and inspected. Credit card refunds are issued to the original card. Check payments are refunded by mail. If you have not received your refund within three weeks, please contact us to confirm receipt.

How to Return Your Core

In most cases, your order will include a shipping document known as a Bill of Lading. You or your repair facility may return the core with the delivery driver, if applicable, or schedule a pickup directly with the shipping carrier using the phone number listed on the Bill of Lading. It is important to use the provided shipping documentation to avoid being billed directly by the carrier. If your order did not include return shipping information, please use the core return link below and follow the instructions provided.

Missing or Non-Returnable Cores

If a core is not available for return, the core deposit is retained and becomes part of the final purchase price. In these cases, only one-way shipping is required. If inventory for a specific core becomes limited, additional core charges may apply. In rare situations, products may not be available for sale without a core exchange.

Sending a Core Before Shipment

For manual transmissions, engines, and transfer cases, customers may send their core in advance. This option may extend overall turnaround time but eliminates the need to pay a core deposit. Only the product price and shipping charges will apply.

Acceptable Core Condition

To qualify for a full core deposit refund, returned cores must not have excessive damage, such as melted or cracked cases. If you are unsure whether your core meets return requirements, please contact our team before shipping.

Questions About Core Returns?

For assistance with core deposits or return eligibility, please contact our support team at (888) 995-7278.

Ready to Return a Core?

Use the link below if you did not receive return information and would like to schedule a core pickup with our shipping department.

Schedule Pickup

Warranty

Platinum 1-Year Unlimited Mileage Nationwide Warranty
Coverage Details:
  • This warranty provides coverage for manufacturing-related defects applicable to this product.
  • This is a nationwide warranty valid throughout the continental United States.
  • No restocking or return shipping fees are charged on approved warranty claims. Restocking and shipping fees may apply only when a customer requests a return for a non-defective transmission or when the return originates outside the continental United States.
  • This warranty includes unlimited mileage coverage during the warranty term.
  • The warranty period begins on the original date of purchase and remains valid for one (1) year.
This Warranty Does Not Cover:
  • Use of the engine, clutch, transfer case, driveline, and/or differential for purposes other than those for which the vehicle was originally designed, including off-road or racing applications.
  • Damage resulting from abuse, neglect, accident, or improper towing.
  • Improper installation or maintenance, including failure to fill the unit with the correct fluid and maintain proper fluid levels.
  • Costs related to towing, vehicle rental, or transportation.
  • Loss of time, inconvenience, loss of vehicle use, commercial loss, or consequential damages.
  • Failures caused by defects or inefficiencies in components or assemblies not supplied with the transmission, including but not limited to flywheels, clutches, or driveshafts.
  • Broken gears or shafts.
  • Cracked or damaged transmission cases.
  • Labor reimbursement and consequential damages are not included under this warranty.
  • Damage, defects, injury, or loss resulting from misuse or negligence.
  • The unit must be returned for inspection to determine warranty eligibility and fault.
Warranty Process:

In the event of a part-related issue, please contact our warranty department for assistance with the claims process. A representative will guide you through the required steps. Warranty support can be reached at (888) 995-7278.

Sales Dept: OPEN