Primary Drive
Primary Drive Countershaft Dome Spring Washer
$20.99
- Part #
- 1870770001
- Mfr. part #
- 187-077-0001
- Availability
- In stock
Check if it fits your vehicle
Only vehicles this part fits are listed.
- Fast Reliable Shipping
- Easy 30-Day Returns
Description
The Primary Drive Countershaft Dome Spring Washer is a great upgrade from your stock front sprocket retaining washer. The OE washer is made from a softer material and will lose it’s "spring" after a short period while the Primary Drive washer is made from a stronger steel and will last much longer. These washers are black zinc plated and laser etched for a factory look!
- Upgraded Countershaft Dome Spring Washer.
- Stronger steel construction that will last longer than OE.
- Black zinc plated with laser etched logo.
- Will not work with FE or EXC models with the rubber dampened front sprocket.
Specifications
| Brand | Primary Drive |
|---|---|
| Part # | 1870770001 |
| Manufacturer part # | 187-077-0001 |
| Product type | Drive |
| Category | Drive |
Fitment (167)
| Make | Model | Years |
|---|---|---|
| Beta | 350 RR | 2016-2018, 2023-2024 |
| Beta | 350 RR Race Edition | 2019-2026 |
| Beta | 350 RR X-Pro | 2025-2026 |
| Beta | 390 RR | 2015-2018, 2023-2024 |
| Beta | 390 RR Race Edition | 2019-2026 |
| Beta | 390 RR X-Pro | 2025-2026 |
| Beta | 390 RR-S | 2017-2023 |
| Beta | 390 RS | 2024, 2026 |
| Beta | 390 RS Special Edition | 2024, 2026 |
| Beta | 430 RR | 2023-2024 |
| Beta | 430 RR Race Edition | 2019-2026 |
| Beta | 430 RR X-Pro | 2025-2026 |
| Beta | 430 RR-S | 2017-2023 |
| Beta | 430 RS | 2024, 2026 |
| Beta | 450 RC | 2025-2026 |
| Beta | 480 RR | 2023-2024 |
| Beta | 480 RR Race Edition | 2019-2026 |
| Beta | 480 RR X-Pro | 2025-2026 |
| Beta | 500 RR-S | 2020-2023 |
| Beta | 500 RS | 2024, 2026 |
| Beta | 500 RS Special Edition | 2024, 2026 |
| Dust Moto | Hightail | 2026 |
| GasGas | EC 250 (Fuel Injected) | 2022-2023 |
| GasGas | EC 300 (Fuel Injected) | 2021-2023 |
| GasGas | EC 450F | 2024-2025 |
| GasGas | ES 350 | 2024-2025 |
| GasGas | EW 500F | 2024 |
| GasGas | EX 250 (Fuel Injected) | 2022-2025 |
| GasGas | EX 250F | 2021-2025 |
| GasGas | EX 300 (Fuel Injected) | 2021-2026 |
| GasGas | EX 350F | 2021-2025 |
| GasGas | EX 450F | 2021-2024 |
| GasGas | MC 125 | 2024-2027 |
| GasGas | MC 150 | 2025 |
| GasGas | MC 250 | 2022-2026 |
| GasGas | MC 250F | 2021-2027 |
| GasGas | MC 250F Factory Edition | 2023-2025 |
| GasGas | MC 300 | 2025 |
| GasGas | MC 350F | 2022-2025 |
| GasGas | MC 450F | 2021-2027 |
| GasGas | MC 450F Factory Edition | 2023-2025 |
| GasGas | MC 450F Troy Lee Designs | 2022 |
| Husaberg | FE 250 | 2013-2014 |
| Husaberg | FE 350 | 2013-2014 |
| Husaberg | FE 390 | 2010-2012 |
| Husaberg | FE 450 | 2009-2014 |
| Husaberg | FE 501 | 2013-2014 |
| Husaberg | FE 570 | 2009-2012 |
| Husaberg | FX 450 | 2010-2012 |
| Husqvarna | FC 250 | 2014-2025, 2027 |
| Husqvarna | FC 250 Factory Edition | 2025-2026 |
| Husqvarna | FC 250 Rockstar Edition | 2022, 2024 |
| Husqvarna | FC 350 | 2014-2025, 2027 |
| Husqvarna | FC 350 Heritage | 2023 |
| Husqvarna | FC 450 | 2014-2025, 2027 |
| Husqvarna | FC 450 Factory Edition | 2025-2026 |
| Husqvarna | FC 450 Rockstar Edition | 2018-2024 |
| Husqvarna | FE 250 | 2014-2019 |
| Husqvarna | FE 350 | 2014-2022 |
| Husqvarna | FE 350 S | 2015-2016, 2020-2026 |
| Husqvarna | FE 350 S Heritage | 2025 |
| Husqvarna | FE 350w | 2024 |
| Husqvarna | FE 450 | 2016-2019, 2023-2026 |
| Husqvarna | FE 450 Heritage | 2023, 2025 |
| Husqvarna | FE 501 | 2014-2022 |
| Husqvarna | FE 501 S | 2015-2016, 2020-2026 |
| Husqvarna | FE 501 S Heritage | 2025 |
| Husqvarna | FE 501w | 2024 |
| Husqvarna | FS 450 | 2021-2022 |
| Husqvarna | FX 350 | 2017-2027 |
| Husqvarna | FX 350 Heritage | 2023, 2025 |
| Husqvarna | FX 450 | 2017-2023, 2025, 2027 |
| Husqvarna | TC 125 | 2020-2022 |
| Husqvarna | TC 125 (Fuel Injected) | 2023-2027 |
| Husqvarna | TC 125 Heritage (Fuel Injected) | 2023, 2025 |
| Husqvarna | TC 150 (Fuel Injected) | 2025 |
| Husqvarna | TC 150 Heritage (Fuel Injected) | 2025 |
| Husqvarna | TC 250 | 2017-2022 |
| Husqvarna | TC 250 (Fuel Injected) | 2023-2027 |
| Husqvarna | TC 250 Heritage (Fuel Injected) | 2023, 2025 |
| Husqvarna | TC 300 (Fuel Injected) | 2025, 2027 |
| Husqvarna | TC 300 Heritage (Fuel Injected) | 2025 |
| Husqvarna | TE 150 (Fuel Injected) | 2020-2026 |
| Husqvarna | TE 250 | 2017-2018 |
| Husqvarna | TE 250 (Fuel Injected) | 2018-2026 |
| Husqvarna | TE 300 | 2017-2018 |
| Husqvarna | TE 300 (Fuel Injected) | 2019-2026 |
| Husqvarna | TE 300 Heritage (Fuel Injected) | 2023, 2025 |
| Husqvarna | TE 300 Pro | 2024-2027 |
| Husqvarna | TE 300 Rockstar Edition (Fuel Injected) | 2021-2022 |
| Husqvarna | TX 300 (Fuel Injected) | 2023-2027 |
| Husqvarna | TX 300 Heritage (Fuel Injected) | 2023, 2025 |
| KTM | 150 XC-W (Fuel Injected) | 2020-2026 |
| KTM | 250 EXC 4-Stroke | 2003-2005 |
| KTM | 250 EXC-F | 2017-2019 |
| KTM | 250 SX | 2017-2022 |
| KTM | 250 SX (Fuel Injected) | 2023-2027 |
| KTM | 250 SX-F | 2005-2027 |
| KTM | 250 SX-F Factory Edition | 2015-2017, 2022, 2024-2026 |
| KTM | 250 SX-F Troy Lee Designs | 2021 |
| KTM | 250 XC | 2017-2019 |
| KTM | 250 XC (Fuel Injected) | 2020-2027 |
| KTM | 250 XC-F | 2007-2009, 2011-2027 |
| KTM | 250 XC-W (E-Start) | 2017-2018 |
| KTM | 250 XC-W (Fuel Injected) | 2018-2027 |
| KTM | 250 XCF-W | 2007-2016 |
| KTM | 300 SX (Fuel Injected) | 2023-2027 |
| KTM | 300 XC | 2017-2019 |
| KTM | 300 XC (Fuel Injected) | 2020-2027 |
| KTM | 300 XC-W (E-Start) | 2017-2018 |
| KTM | 300 XC-W (Fuel Injected) | 2019-2027 |
| KTM | 300 XC-W Champion Edition | 2025 |
| KTM | 300 XC-W Erzbergrodeo (Fuel Injected) | 2020-2023 |
| KTM | 300 XC-W Factory Edition (Fuel Injected) | 2025 |
| KTM | 300 XC-W Hardenduro (Fuel Injected) | 2024-2026 |
| KTM | 300 XC-W Six Days | 2017-2018 |
| KTM | 300 XC-W Six Days (Fuel Injected) | 2019-2020 |
| KTM | 350 EXC-F | 2012-2023 |
| KTM | 350 SX-F | 2011-2027 |
| KTM | 350 XC-F | 2011-2025, 2027 |
| KTM | 350 XC-F Factory Edition | 2022-2026 |
| KTM | 350 XC-F Kailub Russell Edition | 2021 |
| KTM | 350 XCF-W | 2012-2016, 2020-2022 |
| KTM | 350 XCF-W Six Days | 2014-2016 |
| KTM | 350 XW-F | 2024 |
| KTM | 400 EXC 4 Stroke | 2000-2007 |
| KTM | 400 MXC 4 Stroke | 2001-2002 |
| KTM | 400 XC-W | 2007, 2009-2010 |
| KTM | 450 EXC 4-Stroke | 2003-2007 |
| KTM | 450 EXC-R | 2008-2011 |
| KTM | 450 MXC 4-Stroke | 2003-2005 |
| KTM | 450 SMR | 2022-2026 |
| KTM | 450 SX | 2009-2010 |
| KTM | 450 SX 4-Stroke | 2003-2006 |
| KTM | 450 SX-F | 2007-2027 |
| KTM | 450 SX-F Factory Edition | 2012-2026 |
| KTM | 450 XC | 2008-2010 |
| KTM | 450 XC-F | 2006-2009, 2013-2027 |
| KTM | 450 XC-W | 2007-2016 |
| KTM | 450 XCF-W | 2023-2027 |
| KTM | 500 EXC | 2012-2016 |
| KTM | 500 EXC-F | 2017-2026 |
| KTM | 500 EXC-F Champion Edition | 2025 |
| KTM | 500 EXC-F Six Days | 2020-2026 |
| KTM | 500 XC-W | 2012-2016 |
| KTM | 500 XCF-W | 2020-2022 |
| KTM | 500 XW-F | 2024 |
| KTM | 505 SX | 2009-2010 |
| KTM | 505 SX-F | 2007-2008 |
| KTM | 505 XC-F | 2008-2009 |
| KTM | 520 EXC 4 Stroke | 2000-2002 |
| KTM | 520 MXC 4 Stroke | 2000-2002 |
| KTM | 520 SX 4 Stroke | 2000-2002 |
| KTM | 525 EXC 4-Stroke | 2003-2007 |
| KTM | 525 MXC 4-Stroke | 2003-2005 |
| KTM | 525 SX 4-Stroke | 2003-2006 |
| KTM | 525 XC | 2008-2010 |
| KTM | 525 XC-F | 2006-2007 |
| KTM | 525 XC-W | 2007 |
| KTM | 530 EXC-R | 2008-2011 |
| KTM | 530 XC-W | 2008-2011 |
| KTM | 620 EXC | 1995, 1997 |
| KTM | 620 LC4-EXC | 1995, 1997-1998 |
| KTM | 620 SX | 1997 |
| KTM | Freeride 250 R | 2015-2017 |
| KTM | Freeride E | 2025, 2027 |
| KTM | Freeride E-XC | 2020-2023 |
Shipping & Returns
Is shipping free?
Yes. Shipping is free on every order to a US address, and we email you the tracking number when it ships.
What shipping options are available?
Orders are shipped via FedEx, USPS, OnTrac, or other reputable carriers, depending on the most suitable option for your order. Please contact us for expedited shipping requests.
Do you ship outside the USA?
Currently, we ship within the United States only.
Do you ship to Alaska and Hawaii?
Yes, we ship to Alaska and Hawaii.
What could cause a shipping delay?
Delays may occur due to incorrect shipping addresses, carrier disruptions, or holiday periods. If an address issue affects delivery, we will contact you using the information provided with your order.
How do I return an item?
Items may be returned within 30 days of delivery, provided they are unused, in new condition, and in their original packaging. Please contact us with your order number to initiate a return.
Customers are responsible for return shipping costs for ordering errors or change-of-mind returns. If we send an incorrect or damaged item, please email us with your order number and photos of the item. If the error is confirmed to be ours, we will cover the return shipping costs.
Refunds are based on the purchase price of the returned product and are processed after the return is approved and inspected.
See our shipping policy, refund policy and FAQ.
