Hat (Bell) Mount Rotors

Search Hat (Bell) Mount Rotors
Select one or any combination to display a list of Rotors:
Category:
Diameter:
Width:
Bolt Circle:
Material:
Search Results Diameter: 12.19 >> Width: 0.81
GT 36 Curved Vane Rotor
Rotor Diameter: 12.19
Rotor Width: 0.81
Rotor Bolt Circle(s): 8 x 7.00
Material: Spec-37 Iron
GT 36 Curved Vane Rotor

GT 36 Curved Vane Rotor Drawing GT 36 Curved Vane Rotor Drawing Zoom Image

GT 36 Curved Vane Rotor Description

Wilwood's GT 36 Curved Vane Spec-37 rotors are manufactured from a proprietary iron alloy developed to withstand extreme temperatures with the highest possible degree of resistance against distortion, warping, cracking, and wear. The formulation for this alloy is a derivative of technology and materials that were significant in the development of the extreme duty military spec rotors that are manufactured by Wilwood. Combined with our proven GT Series asymmetrical face slot pattern and individual dynamic balancing, you are assured the smoothest braking available.
NOTE & CAUTIONS:
Premium grade, Spec-37 Heavy Wall Castings

Ordering Information for GT 36 Curved Vane Rotor
Item No 160-12291
Info Details
Rotor Style GT Slotted
Bedded N
Lug I.D. 6.38
Far Side I.D. 8.56
Price $194.59
Purchase
Call (805) 388-1188
Item No 160-12292
Info Details
Rotor Style GT Slotted
Bedded N
Lug I.D. 6.38
Far Side I.D. 8.56
Price $194.59
Purchase
Call (805) 388-1188

HD 36 Curved Vane Rotor
Rotor Diameter: 12.19
Rotor Width: 0.81
Rotor Bolt Circle(s): 8 x 7.00
Material: Spec-37 Iron
HD 36 Curved Vane Rotor

HD 36 Curved Vane Rotor Drawing HD 36 Curved Vane Rotor Drawing Zoom Image

HD 36 Curved Vane Rotor Description

Wilwood's HD 36 Curved Vane Spec-37 rotors are manufactured from a proprietary iron alloy developed to withstand extreme temperatures with the highest possible degree of resistance against distortion, warping, cracking, and wear. The formulation for this alloy is a derivative of technology and materials that were significant in the development of the extreme duty military spec rotors that are manufactured by Wilwood. Our HD Series preparation includes full detail machining and smooth pad contact faces without slots.
NOTE & CAUTIONS:
Premium grade, Spec-37 Heavy Wall Castings

Ordering Information for HD 36 Curved Vane Rotor
Item No 160-12289
Info Details
Rotor Style Plain Face
Bedded N
Lug I.D. 6.38
Far Side I.D. 8.56
Price $162.12
Purchase
Call (805) 388-1188
Item No 160-12290
Info Details
Rotor Style Plain Face
Bedded N
Lug I.D. 6.38
Far Side I.D. 8.56
Price $162.12
Purchase
Call (805) 388-1188

SRP Drilled Performance Rotor
Rotor Diameter: 12.19
Rotor Width: 0.81
Rotor Bolt Circle(s): 8 x 7.00
Material: Iron
SRP Drilled Performance Rotor

SRP Drilled Performance Rotor Drawing SRP Drilled Performance Rotor Drawing Zoom Image

SRP Drilled Performance Rotor Description

SRP Drilled Performance Rotors feature a specially engineered directional cross drill and face slot pattern that improve brake response and pad performance throughout the entire range of light to heavy braking. The venting and cleaning action of the holes and slots will reduce pad glaze and disperse gasses and heat generated during the pad to rotor interface. The holes and slots also inhibit irregular pad compound build-up on the rotor faces resulting in smoother engagement and improved pedal response in all conditions. The material removed also contributes to lower rotating and unsprung suspension weight.
NOTE & CAUTIONS:
Premium grade, medium weight castings.

Ordering Information for SRP Drilled Performance Rotor
Item No 160-7103-BK
Info Details
Rotor Style SRP Drilled & Slotted
Bedded N
Lug I.D. 6.38
Far Side I.D. 8.56
Price $213.52
Purchase
Call (805) 388-1188
Item No 160-7104-BK
Info Details
Rotor Style SRP Drilled & Slotted
Bedded N
Lug I.D. 6.38
Far Side I.D. 8.56
Price $213.52
Purchase
Call (805) 388-1188

Ultralite 32 Vane Rotor
Rotor Diameter: 12.19
Rotor Width: 0.81
Rotor Bolt Circle(s): 8 x 7.00
Material: Iron
Ultralite 32 Vane Rotor

Ultralite 32 Vane Rotor Drawing Ultralite 32 Vane Rotor Drawing Zoom Image

Ultralite 32 Vane Rotor Description

Ultra-Light UL straight vane rotors provide high value performance and rugged durability for a wide range of competition, high performance, and sport driving applications. Don't confuse these rotors with bargain priced off-brand named parts. Wilwood's modern manufacturing capability, combined with large scale economy, make it possible to offer this level of quality and performance at such an affordable price.
NOTE & CAUTIONS:
Premium grade, medium weight castings.

Ordering Information for Ultralite 32 Vane Rotor
Item No 160-0277
Info Details
Rotor Style Plain Face
Bedded N
Lug I.D. 6.38
Far Side I.D. 8.56
Price $61.41
Purchase
Call (805) 388-1188

Ulltralite 32 Vane Rotor Drilled
Rotor Diameter: 12.19
Rotor Width: 0.81
Rotor Bolt Circle(s): 8 x 7.00
Material: Iron
Ulltralite 32 Vane Rotor Drilled

Ulltralite 32 Vane Rotor Drilled Drawing Ulltralite 32 Vane Rotor Drilled Drawing Zoom Image

Ulltralite 32 Vane Rotor Drilled Description

When it comes to rotors, racers are constantly searching for the ultimate balance between the lowest weight and the ability to effectively manage heat. Decreased rotating weight in the drive line provides quicker deceleration under braking and quicker acceleration out of the corners. Lower weight also benefits handling with improved spring and shock control over the unsprung suspension mass. Wilwood's ULD-32 drilled iron rotors provides effective lightweight options for sprints, late models, modifieds, and other competition applications that race in low to medium temperature ranges.
NOTE & CAUTIONS:
Race Drilled Rotors are unsafe for street use.

Ordering Information for Ulltralite 32 Vane Rotor Drilled
Item No 160-5865
Info Details
Rotor Style Race Drilled
Bedded N
Lug I.D. 6.38
Far Side I.D. 8.56
Price $113.62
Purchase
Call (805) 388-1188

Ultralite HP 32 Vane Rotor
Rotor Diameter: 12.19
Rotor Width: 0.81
Rotor Bolt Circle(s): 8 x 7.00
Material: Iron
Ultralite HP 32 Vane Rotor

Ultralite HP 32 Vane Rotor Drawing Ultralite HP 32 Vane Rotor Drawing Zoom Image

Ultralite HP 32 Vane Rotor Description

Ultra-Light ULHP-32 straight vane rotors provide an excellent balance of efficient cooling and lower rotating mass on hard braking dirt tracks or rear axle service on pavement cars. UL rotors are cast from premium grade, long grain carbon iron for long wear, high thermal stability, and resistance to distortion. ULHP-32 rotors offered the added performance and smoother operation of precision turned faces with less than .001" variation in flatness, parallelism, or run-out.
NOTE & CAUTIONS:
Premium grade, medium weight castings.

Ordering Information for Ultralite HP 32 Vane Rotor
Item No 160-5843
Info Details
Rotor Style Plain Face
Bedded N
Lug I.D. 6.38
Far Side I.D. 8.56
Price $126.90
Purchase
Call (805) 388-1188

Ultralite 32 Vane Scalloped Rotor
Rotor Diameter: 12.19
Rotor Width: 0.81
Rotor Bolt Circle(s): 8 x 7.00
Material: Iron
Ultralite 32 Vane Scalloped Rotor

Ultralite 32 Vane Scalloped Rotor Drawing Ultralite 32 Vane Scalloped Rotor Drawing Zoom Image

Ultralite 32 Vane Scalloped Rotor Description

When it comes to rotors, racers are constantly searching for the ultimate balance between the lowest weight and the ability to effectively manage heat. Decreased rotating weight in the drive line provides quicker deceleration under braking and quicker acceleration out of the corners. Lower weight also benefits handling with improved spring and shock control over the unsprung suspension mass. Wilwood's ULS-32 scalloped iron rotors provides effective lightweight options for sprints, late models, modifieds, and other competition applications that race in low to medium temperature ranges.
NOTE & CAUTIONS:
Scalloped Rotors are unsafe for street use.

Ordering Information for Ultralite 32 Vane Scalloped Rotor
Item No 160-8136
Info Details
Rotor Style Plain Face
Bedded N
Lug I.D. 6.38
Far Side I.D. 8.56
Price $140.25
Purchase
Call (805) 388-1188

GT 36 Curved Vane Rotor
Rotor Diameter: 12.19
Rotor Width: 0.81
Rotor Bolt Circle(s): 8 x 7.62
Material: Spec-37 Iron
GT 36 Curved Vane Rotor

GT 36 Curved Vane Rotor Drawing GT 36 Curved Vane Rotor Drawing Zoom Image

GT 36 Curved Vane Rotor Description

Wilwood's GT 36 Curved Vane Spec-37 rotors are manufactured from a proprietary iron alloy developed to withstand extreme temperatures with the highest possible degree of resistance against distortion, warping, cracking, and wear. The formulation for this alloy is a derivative of technology and materials that were significant in the development of the extreme duty military spec rotors that are manufactured by Wilwood. Combined with our proven GT Series asymmetrical face slot pattern and individual dynamic balancing, you are assured the smoothest braking available.
NOTE & CAUTIONS:
Premium grade, Spec-37 Heavy Wall Castings

Ordering Information for GT 36 Curved Vane Rotor
Item No 160-12293
Info Details
Rotor Style GT Slotted
Bedded N
Lug I.D. 7.13
Far Side I.D. 8.34
Price $250.03
Purchase
Call (805) 388-1188
Item No 160-12294
Info Details
Rotor Style GT Slotted
Bedded N
Lug I.D. 7.13
Far Side I.D. 8.34
Price $250.03
Purchase
Call (805) 388-1188

SRP Drilled Performance Rotor
Rotor Diameter: 12.19
Rotor Width: 0.81
Rotor Bolt Circle(s): 8 x 7.62
Material: Iron
SRP Drilled Performance Rotor

SRP Drilled Performance Rotor Drawing SRP Drilled Performance Rotor Drawing Zoom Image

SRP Drilled Performance Rotor Description

SRP Drilled Performance Rotors feature a specially engineered directional cross drill and face slot pattern that improve brake response and pad performance throughout the entire range of light to heavy braking. The venting and cleaning action of the holes and slots will reduce pad glaze and disperse gasses and heat generated during the pad to rotor interface. The holes and slots also inhibit irregular pad compound build-up on the rotor faces resulting in smoother engagement and improved pedal response in all conditions. The material removed also contributes to lower rotating and unsprung suspension weight.
NOTE & CAUTIONS:
Premium grade, medium weight castings.

Ordering Information for SRP Drilled Performance Rotor
Item No 160-7105-BK
Info Details
Rotor Style SRP Drilled & Slotted
Bedded N
Lug I.D. 7.13
Far Side I.D. 8.50
Price $213.52
Purchase
Call (805) 388-1188
Item No 160-7106-BK
Info Details
Rotor Style SRP Drilled & Slotted
Bedded N
Lug I.D. 7.13
Far Side I.D. 8.50
Price $213.52
Purchase
Call (805) 388-1188

Ultralite HP 32 Vane Rotor
Rotor Diameter: 12.19
Rotor Width: 0.81
Rotor Bolt Circle(s): 8 x 7.62
Material: Iron
Ultralite HP 32 Vane Rotor

Ultralite HP 32 Vane Rotor Drawing Ultralite HP 32 Vane Rotor Drawing Zoom Image

Ultralite HP 32 Vane Rotor Description

Ultra-Light ULHP-32 straight vane rotors provide an excellent balance of efficient cooling and lower rotating mass on hard braking dirt tracks or rear axle service on pavement cars. UL rotors are cast from premium grade, long grain carbon iron for long wear, high thermal stability, and resistance to distortion. ULHP-32 rotors offered the added performance and smoother operation of precision turned faces with less than .001" variation in flatness, parallelism, or run-out.
NOTE & CAUTIONS:
Premium grade, medium weight castings.

Ordering Information for Ultralite HP 32 Vane Rotor
Item No 160-5844
Info Details
Rotor Style Plain Face
Bedded N
Lug I.D. 7.13
Far Side I.D. 8.50
Price $126.90
Purchase
Call (805) 388-1188

SRP Drilled Performance Rotor
Rotor Diameter: 12.19
Rotor Width: 0.81
Rotor Bolt Circle(s): 8 x 7.78
Material: Iron
SRP Drilled Performance Rotor

SRP Drilled Performance Rotor Drawing SRP Drilled Performance Rotor Drawing Zoom Image

SRP Drilled Performance Rotor Description

SRP Drilled Performance Rotors feature a specially engineered directional cross drill and face slot pattern that improve brake response and pad performance throughout the entire range of light to heavy braking. The venting and cleaning action of the holes and slots will reduce pad glaze and disperse gasses and heat generated during the pad to rotor interface. The holes and slots also inhibit irregular pad compound build-up on the rotor faces resulting in smoother engagement and improved pedal response in all conditions. The material removed also contributes to lower rotating and unsprung suspension weight.
NOTE & CAUTIONS:
Premium grade, medium weight castings.

Ordering Information for SRP Drilled Performance Rotor
Item No 160-6924-BK
Info Details
Rotor Style SRP Drilled & Slotted
Bedded N
Lug I.D. 7.29
Far Side I.D. 8.53
Price $226.87
Purchase
Call (805) 388-1188
Item No 160-6925-BK
Info Details
Rotor Style SRP Drilled & Slotted
Bedded N
Lug I.D. 7.29
Far Side I.D. 8.53
Price $226.87
Purchase
Call (805) 388-1188

Ultralite HP 32 Vane Rotor
Rotor Diameter: 12.19
Rotor Width: 0.81
Rotor Bolt Circle(s): 8 x 7.78
Material: Iron
Ultralite HP 32 Vane Rotor

Ultralite HP 32 Vane Rotor Drawing Ultralite HP 32 Vane Rotor Drawing Zoom Image

Ultralite HP 32 Vane Rotor Description

Ultra-Light ULHP-32 straight vane rotors provide an excellent balance of efficient cooling and lower rotating mass on hard braking dirt tracks or rear axle service on pavement cars. UL rotors are cast from premium grade, long grain carbon iron for long wear, high thermal stability, and resistance to distortion. ULHP-32 rotors offered the added performance and smoother operation of precision turned faces with less than .001" variation in flatness, parallelism, or run-out.
NOTE & CAUTIONS:
Premium grade, medium weight castings.

Ordering Information for Ultralite HP 32 Vane Rotor
Item No 160-6984
Info Details
Rotor Style Plain Face
Bedded N
Lug I.D. 7.29
Far Side I.D. 8.53
Price $162.31
Purchase
Call (805) 388-1188

Ultralite HPS 32 Vane Rotor
Rotor Diameter: 12.19
Rotor Width: 0.81
Rotor Bolt Circle(s): 8 x 7.78
Material: Iron
Ultralite HPS 32 Vane Rotor

Ultralite HPS 32 Vane Rotor Drawing Ultralite HPS 32 Vane Rotor Drawing Zoom Image

Ultralite HPS 32 Vane Rotor Description

Ultra-Light ULHP straight vane rotors provide high value performance and rugged durability for a wide range of competition, high performance, and sport driving applications. Don't confuse these rotors with bargain priced off-brand named parts. Wilwood's modern manufacturing capability, combined with large scale economies, make it possible to offer this level of quality and performance at such an affordable price.
NOTE & CAUTIONS:
Premium grade, medium weight castings.

Ordering Information for Ultralite HPS 32 Vane Rotor
Item No 160-9585
Info Details
Rotor Style GT Slotted
Bedded N
Lug I.D. 7.29
Far Side I.D. 8.53
Price $183.97
Purchase
Call (805) 388-1188


All images shown are for illustrative purposes only. Actual product received may be different than what is portrayed on the web site.
Wilwood makes every effort to maintain our web site to ensure the accuracy of prices and product information. However, product information and prices are subject to change without notice. Please call (805) 388-1188 before ordering to verify current prices and product information.
Copyright © 1977 - 2025 Wilwood Engineering, Inc. - All Rights Reserved

​ ​