Description
Quick Change Gear Set – 8500 Series – Set 21 – 10 Spline – 4.12 Ratios 6.29 / 2.70 – 4.86 Ratios 7.41 / 3.18 – Steel – Polished – Each
SKU: WIN8521
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⏱️ Estimated Shipping: 1-3 days
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Original price was: $128.16.$116.51Current price is: $116.51.
In stock
6 in stock
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| Weight | 6.75 lbs |
|---|---|
| Dimensions | 8.9 × 5 × 1.9 in |
| Spline | 10.0 |
| Set Number | 21 |
| Gear 1 Tooth Count | 19.0 |
| Gear 2 Tooth Count | 29.0 |
| 4:12 Ring And Pinion Low Ratio | 2.7 |
| 4:12 Ring And Pinion High Ratio | 6.26 |
| 4:57 Ring And Pinion Low Ratio | 2.99 |
| 4:57 Ring And Pinion High Ratio | 6.98 |
| 4:86 Ring And Pinion Low Ratio | 3.18 |
| 4:86 Ring And Pinion High Ratio | 7.41 |
| Spur Ratio | 1.526 |
| Heat Treaded | Yes |
| Alloy | 8620.0 |
| Material | Steel |
| Color | Polished |
| Finish | Polished |
| Quantity | Pair |
| Variant | Yes |
| Variant Group | Quick Change Gears12 |
| Variant Column | Set Number |
| Brand | |
| Condition | |
| Type | |
| Manufacturer Part Number | 8521 |
Quick Change Gear Set – 8500 Series – Set 21 – 10 Spline – 4.12 Ratios 6.29 / 2.70 – 4.86 Ratios 7.41 / 3.18 – Steel – Polished – Each
Below are estimated rates and delivery times for popular destinations; full carrier options are available at checkout.
Our dedicated team has years of experience managing international logistics and customs documentation to ensure smooth delivery from our US warehouse to your door. Please review our shipping policy and local import regulations before ordering.
| Destination | Est. Time | Cost |
|---|---|---|
| Canada (Toronto) | 5-7 business days |
$139.98 DHL Express |
| UK (London) | 5-7 business days |
$150.31 DHL Express |
| Australia (Sydney) | 5-7 business days |
$158.99 DHL Express |
| Germany (Berlin) | 5-7 business days |
$154.02 DHL Express |
P4120751AB
Yes
Kit
Yes
6 Rib, 3 Rib
Aluminum
Yes
Each
Steel
Black
Powder Coat
NU-Cast Engine Enamel
Enamel
Engine
Yes
Satin
Each
750 CFM
Gasoline
Dual
Square Bore
DigitalFit
Yes
Front
Textured
Plastic
Steel
Cadmium
Plated
Each
Snap Ring
Kit
Lower
Front
1.366 in
Yes
Steel
Polished
Polished
Pair
Yes
Steel
Aluminized
Each
Yes
Mandrel Bend
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