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Welcome to Circle D Specialties

Our mission is to make exceptional torque converters while providing unparalleled knowledge and outstanding customer service. We are driven to continually improve and raise the bar with our products, relentlessly pursuing perfection. We are a team, we are family, we are Circle D Specialties.
Our performance moves us.

Featured products
Picture of CDS LS Billet Flexplate

CDS LS Billet Flexplate

FLEX-BS-GM-LST-6
$349.00

Picture of Ford HP Series 10R80 Torque Converter

Ford HP Series 10R80 Torque Converter

46-07-04
$2,000.00
HP Series Billet Stator Torque Converter Converter Diameter - 245mm or 258mm

Picture of GM HP Series 10L90 Torque Converter

GM HP Series 10L90 Torque Converter

27-07-05
$2,000.00
HP Series Billet Stator Torque Converter Converter Diameter - 258mm

Picture of GM 300mm HP 4L60 LS 2800rpm Torque Converter

GM 300mm HP 4L60 LS 2800rpm Torque Converter

01-07-09-3D
$599.00
Great torque converter for a DD performance vehicle. This converter will have great street manners and only flash high when you want it. A nice durable option for everyday use.

Picture of GM 300mm HP 6L80 2800rpm Torque Converter

GM 300mm HP 6L80 2800rpm Torque Converter

07-07-09-3D
$699.00
Great torque converter for a DD performance vehicle. This converter will have great street manners and only flash high when you want it. A nice durable option for everyday use.

Picture of GM 300mm HP 4L80 2800rpm Torque Converter

GM 300mm HP 4L80 2800rpm Torque Converter

05B-07-09-3D
$699.00
THE 'go-to' converter for your 4L80 swap project. This converter will have great street manners and only flash high when you want it. A nice durable option for everyday use.

Picture of CDS Retro Summer 2021

CDS Retro Summer 2021

MRCH-TSHIRT-RETRO
$20.00
Picture of CDS Team Hat 2021

CDS Team Hat 2021

MRCH-CDS HAT
$35.00
Bestsellers
Picture of CDS Team Shirt

CDS Team Shirt

MRCH-TSHIRT
$15.00
Picture of GM 300mm HP 6L80 2800rpm Torque Converter

GM 300mm HP 6L80 2800rpm Torque Converter

07-07-09-3D
$699.00
Great torque converter for a DD performance vehicle. This converter will have great street manners and only flash high when you want it. A nice durable option for everyday use.

Picture of GM Converter Bolts

GM Converter Bolts

Bolts-GM
$25.00
M10-1.5, 16mm UHL
Picture of GM 258mm Pro Series 4L80E Torque Converter

GM 258mm Pro Series 4L80E Torque Converter

05-12-05
$999.00
Pro Series Billet Torque Converter Converter Diameter - 258mm - 10 1/4" Available in stall speeds from 2800 - 3700 rpm

New products
Picture of CDS Shop Banner 2' x 5'

CDS Shop Banner 2' x 5'

MRCH-BANNER-SM
$40.00
Bring the #TeamCDS experience to your home, office, or garage wall with this 2' x 5' vinyl banner!
Picture of GM 300mm Pro Series 6L80 Triple Disk Torque Converter

GM 300mm Pro Series 6L80 Triple Disk Torque Converter

07-13-09-2A
$999.00
This is a great upgrade for 6L80/6L90 truck owners who are looking for a more durable converter along with a slightly increased stall speed. TCM tuning required!

Picture of CDS Team Hat 2021

CDS Team Hat 2021

MRCH-CDS HAT
$35.00
Picture of GM HP Series 10L90 Torque Converter

GM HP Series 10L90 Torque Converter

27-07-05
$2,000.00
HP Series Billet Stator Torque Converter Converter Diameter - 258mm

Contacts
  • Phone 713-895-8834
  • Fax 713-589-8667
  • Text 713-999-3610
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