Flywheel 3972705 Fits for Cummins Engine 4B3.9 6B5.9 6C8.3 B4.5 ISB6.7 QSB6.7 QSL9
Flywheel 3972705 Fits for Cummins Engine 4B3.9 6B5.9 6C8.3 B4.5 ISB6.7 QSB6.7 QSL9 is backordered and will ship as soon as it is back in stock.
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Powering 10,000+ Commercial Fleets
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One Year Warranty
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Easy 60-day Return
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Expert support & Fitment Guarantee
Description
Description
Flywheel 3972705 — Fits Cummins Engine 4B3.9, 6B5.9, 6C8.3, B4.5, ISB6.7, QSB6.7, QSL9
This new aftermarket flywheel, part number 3972705, is designed to provide reliable performance and compatibility with various Cummins engine models. Sold as a single unit, this flywheel ensures proper engine operation by helping to maintain momentum and smooth power delivery.
Part Details
- Condition: New, Aftermarket
- Quantity: 1
- Part Number: 3972705
Compatible Part Numbers
- 3972705
Compatible Engines
- 4B3.9
- 6B5.9
- 6C8.3
- B4.5
- B4.5 CM2350 B146C
- B6.7 CM2350 B136C
- B6.7 CM2350 B157C
- F3.8 CM2350 F128C
- F3.8 CM2350 F133C
- F4.5 CM2620 F141C
- G5.9
- G5.9 CM558
- G8.3
- G8.3 CM558
- GTA8.3 CM558
- ISB4.5 CM2150
- ISB6.7 CM2250
- L9 CM2350 L120C
- L9 CM2350 L129C
- L9 CM2670 L134C
- QSB4.5 CM2150 B108
- QSB4.5 CM2250 B131
- QSB4.5 CM2250 EC
- QSB4.5 CM2350 B106
- QSB4.5 CM2350 B122
- QSB4.5 CM850 (CM2850)
- QSB5.9 30 CM550
- QSB5.9 44 CM550
- QSB6.7 CM2250
- QSB6.7 CM2250 EC
- QSB6.7 CM2350 B105
- QSB6.7 CM2350 B112
- QSB6.7 CM850 (CM2850)
- QSC8.3 CM850 (CM2850)
- QSF3.8 CM2350 F107
- QSF3.8 CM2350 F118
- QSF3.8 CM2350 F119
- QSF3.8 CM2880 F112
- QSL9 CM2250
- QSL9 CM2350 L102
- QSL9 CM850 (CM2850)
- QSL9 G CM558
Compatible Equipment
- Cummins engines across a wide range of industrial, automotive, and heavy equipment applications
1 Year Warranty
1 Year Warranty
Fab Heavy Parts is excited to offer a 12-month warranty on all new replacement/aftermarket parts starting from your original purchase date.
Enjoy peace of mind with Fab Heavy Parts!
For more warranty details, please check out our warranty policy.
Fast Delivery
Fast Delivery
Estimated delivery time 3-6 workdays
No Core Charge
No Core Charge
We don't have a core charge for any products.
Frequently Asked Questions
What will shipping cost?
Shipping is calculated in your cart. Enter your province and postal code to see the available rate before checkout.
When will my order arrive?
Processing normally takes 1–2 business days. Estimated delivery to Canada is 4–7 workdays after dispatch. For parts weighing over 68 kg, delivery may take 5–10 workdays. Carrier or customs delays may add time.
Will I pay Canadian duties or GST?
Yes. Prices do not include Canadian import duties, GST/HST, or customs-clearance fees. If charges apply, the carrier or Canadian customs will contact you for payment before delivery.
Customs duty: Auto parts imported from China commonly have duty rates of approximately 6%–8.5% of the CIF value (cost, insurance, and freight), depending on the product’s HS code. Canada and China do not have a free trade agreement.
GST/HST: A 5% federal GST generally applies to commercial imports. Depending on the destination province, a combined HST rate of approximately 13%–15% may apply instead.
These rates are estimates. The final amount is determined by Canadian customs based on the product classification, declared value, origin, and destination.
Can I return my order?
Eligible unused parts may be returned within 60 days of delivery. Items must be uninstalled, clean, undamaged, and in their original packaging. To start a return, please begin from our return portal before sending anything back.
Are prices shown in Canadian dollars?
Yes. For orders shipping to Canada, all product prices and checkout amounts are shown in Canadian dollars, and you can pay in CAD.
Do you offer B2B accounts?
Yes. We welcome B2B customers and can invite your team members to our B2B portal, where your business can manage purchasing and place orders with us. Contact us to get started.
How can I pay?
Checkout accepts Visa, Mastercard, PayPal, Shop Pay, Apple Pay, and Google Pay. Available options are shown securely at checkout.
