Pulley, HTD, 5M, 1-inch Bore, 28/32/36/40 Tooth

Pulley, HTD, 5M, 1-inch Bore, 28/32/36/40 Tooth

Part Number: 21112
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Product Info


  • Designed for 5M pitch, 15mm wide HTD drive belt

  • Drive pulley featuring 1/8” keyed 1” bore for any 1” drive mandrel including Aeromotive P/N 21119 and 21120 Drive Mandrels.

  • Rated Mechanical Pump flow is at 4,000 Pump RPM. 

  • Maximum pump speed should not exceed 5000 RPM. A safe target pump speed is 4,500 RPM.

  • To calculate: Pump RPM = Engine RPM x the following %.

  • 28 tooth – 50% with 56 tooth driven pulley P/N 21112

  • 32 tooth – 57% with 56 tooth driven pulley P/N 21113

  • 36 tooth – 64% with 56 tooth driven pulley P/N 21114

  • 40 tooth – 71% with 56 tooth driven pulley P/N 21115


This product is not legal for sale or use on emission-controlled vehicles except when used as a direct replacement part matching OEM specifications.

Product warranty

Retail Purchasers:

  • Warranty: 1 year from purchase date with proof.
  • Claims: Contact Aeromotive for issues and RGA. Pre-paid shipping required.
  • Remedies: Limited to product sale price. Not liable for incidental damages. Not for emission-controlled vehicles.
  • Contact: 913-808-2376, option 3 (have part, proof of purchase, pen, paper).

Distributors:

  • Warranty Returns: Require RGA and proof of customer purchase. Handled as repair or replacement.
  • Stock Adjustments: Annual returns need prior approval and RGA. Over 5% of annual sales incur 15% restocking fee. Account credit only, no cash refunds.

Returns & replacements

Returns:

  • Accepted within 90 days of purchase.
  • Prior authorization required; items must be new and resaleable.
  • Call 913-808-2376 to initiate a return and get an RGA.
  • Ship unused products in original packaging with proof of purchase.
  • You pay return shipping; use a trackable method.
  • Refund excludes initial shipping fees and may include up to a 15% restocking fee.
  • Refunds processed within 5-10 days of return acceptance.

Defective Items:

  • Call 913-808-2376 (Returns and Repairs) for assistance.
  • Follow RGA/Warranty protocol for refunds or replacements.

Limits of Responsibility:

  • See Product Warranty page for more info.

Price/Description Changes:

  • Prices, pictures, and descriptions may change.
  • Report discrepancies within 30 days.
  • No refunds for price differences on past or future orders.

Promotions:

  • Discount codes apply to web store orders only.
  • Not valid on previous orders or outside promotion dates.

Reviews

Pulley, HTD, 5M, 1-inch Bore, 28/32/36/40 Tooth

Pulley, HTD, 5M, 1-inch Bore, 28/32/36/40 Tooth

Part Number: 21112
Choose your Tooth Size:
Regular price $82.95
Sale price $82.95 Regular price

Part Number: 21112
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Product Info


  • Designed for 5M pitch, 15mm wide HTD drive belt

  • Drive pulley featuring 1/8” keyed 1” bore for any 1” drive mandrel including Aeromotive P/N 21119 and 21120 Drive Mandrels.

  • Rated Mechanical Pump flow is at 4,000 Pump RPM. 

  • Maximum pump speed should not exceed 5000 RPM. A safe target pump speed is 4,500 RPM.

  • To calculate: Pump RPM = Engine RPM x the following %.

  • 28 tooth – 50% with 56 tooth driven pulley P/N 21112

  • 32 tooth – 57% with 56 tooth driven pulley P/N 21113

  • 36 tooth – 64% with 56 tooth driven pulley P/N 21114

  • 40 tooth – 71% with 56 tooth driven pulley P/N 21115


This product is not legal for sale or use on emission-controlled vehicles except when used as a direct replacement part matching OEM specifications.

Product warranty

Retail Purchasers:

  • Warranty: 1 year from purchase date with proof.
  • Claims: Contact Aeromotive for issues and RGA. Pre-paid shipping required.
  • Remedies: Limited to product sale price. Not liable for incidental damages. Not for emission-controlled vehicles.
  • Contact: 913-808-2376, option 3 (have part, proof of purchase, pen, paper).

Distributors:

  • Warranty Returns: Require RGA and proof of customer purchase. Handled as repair or replacement.
  • Stock Adjustments: Annual returns need prior approval and RGA. Over 5% of annual sales incur 15% restocking fee. Account credit only, no cash refunds.

Returns & replacements

Returns:

  • Accepted within 90 days of purchase.
  • Prior authorization required; items must be new and resaleable.
  • Call 913-808-2376 to initiate a return and get an RGA.
  • Ship unused products in original packaging with proof of purchase.
  • You pay return shipping; use a trackable method.
  • Refund excludes initial shipping fees and may include up to a 15% restocking fee.
  • Refunds processed within 5-10 days of return acceptance.

Defective Items:

  • Call 913-808-2376 (Returns and Repairs) for assistance.
  • Follow RGA/Warranty protocol for refunds or replacements.

Limits of Responsibility:

  • See Product Warranty page for more info.

Price/Description Changes:

  • Prices, pictures, and descriptions may change.
  • Report discrepancies within 30 days.
  • No refunds for price differences on past or future orders.

Promotions:

  • Discount codes apply to web store orders only.
  • Not valid on previous orders or outside promotion dates.

Reviews

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