999492 Breather bolt set
Fits: 08-17Twin Cam; 17-25 M8 (excl. 2025…
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Specifications
- Brand
- MCS
- Part Number
- 999492
- OEM Reference
- 29465-08A
- Pack Quantity
- Sold as pr
- Category
- Breather Bolts
- VAT Rate
- 20%
About This Product
For later model engines, these MCS breather bolts are the long type required for proper ventilation. They are designed with 3/8-16 threading and are sold as a pair. These hollow bolts fit 2008 to 2017 Twin Cam models and 2017 to 2025 Milwaukee-Eight engines, though they exclude certain 2023 to 2025 CVO and specialized touring models. They are an ideal solution when installing aftermarket air cleaners, allowing for a clean connection to breather hoses. Carrying the OEM reference numbers 29465-08A and 999492, they provide a professional way to manage engine breathing on modern Big Twins, ensuring optimal performance and a clean intake.
Manufacturer part number: 999492.
Fitment
172 models08-17Twin Cam; 17-25 M8 (excl. 2025 Softail; 23-25 FLTRXSE; 24-25 FLTRXSTSE; 23-25 FLHXSE; 24-25 FLHX; 2025 FLHXU; 24-25 FLTRX)
CVO/Custom 32 models
Dyna 24 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2008–2017 | Dyna Fat Bob FXDF |
| Harley-Davidson | 2012–2017 | Dyna Fat Bob FXDF 103 |
| Harley-Davidson | 2008–2017 | Dyna Low Rider FXDL |
| Harley-Davidson | 2014–2017 | Dyna Low Rider FXDL 103 |
| Harley-Davidson | 2016–2017 | Dyna Low Rider S FXDLS |
| Harley-Davidson | 2008–2017 | Dyna Street Bob FXDB |
| Harley-Davidson | 2014–2017 | Dyna Street Bob FXDB 103 |
| Harley-Davidson | 2013 | Dyna Street Bob FXDBA |
| Harley-Davidson | 2013 | Dyna Street Bob FXDBA 103 |
| Harley-Davidson | 2015 | Dyna Street Bob FXDBB |
| Harley-Davidson | 2014–2015 | Dyna Street Bob FXDBB 103 |
| Harley-Davidson | 2013–2016 | Dyna Street Bob FXDBP 103 |
| Harley-Davidson | 2016 | Dyna Street Bob Limited FXDBC |
| Harley-Davidson | 2016 | Dyna Street Bob Limited FXDBC 103 |
| Harley-Davidson | 2013 | Dyna Super Glide Custom Anv FXDC |
| Harley-Davidson | 2008–2014 | Dyna Super Glide Custom FXDC |
| Harley-Davidson | 2014 | Dyna Super Glide Custom FXDC 103 |
| Harley-Davidson | 2008–2010 | Dyna Super Glide FXD |
| Harley-Davidson | 2012–2016 | Dyna Switchback FLD |
| Harley-Davidson | 2012–2016 | Dyna Switchback FLD 103 |
| Harley-Davidson | 2008 | Dyna Wide Glide 105th Anv FXDWG |
| Harley-Davidson | 2010–2016 | Dyna Wide Glide FXDWG |
| Harley-Davidson | 2012–2017 | Dyna Wide Glide FXDWG 103 |
| Harley-Davidson | 2017 | Low Rider FXDL 103 |
Police 9 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2008–2020 | Electra Glide Standard Police FLHTP |
| Harley-Davidson | 2025 | Police Electra Glide FLHTP |
| Harley-Davidson | 2021–2024 | Police Electra Glide FLHTP |
| Harley-Davidson | 2025 | Police Road Glide FLTRXP |
| Harley-Davidson | 2024 | Police Road Glide FLTRXP |
| Harley-Davidson | 2025 | Police Road King FLHP |
| Harley-Davidson | 2021–2024 | Police Road King FLHP |
| Harley-Davidson | 2008–2020 | Road King Police FLHP |
| Harley-Davidson | 2008–2011 | Road King Police FLHPE |
Softail 54 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2011–2013 | Blackline FXS |
| Harley-Davidson | 2012–2013 | Blackline FXS 103 |
| Harley-Davidson | 2018 | Breakout 114 Anniversary FXBRS |
| Harley-Davidson | 2018–2022 | Breakout 114 FXBRS |
| Harley-Davidson | 2018–2024 | Breakout FXBR |
| Harley-Davidson | 2017 | Breakout FXSB |
| Harley-Davidson | 2008–2011 | Cross Bones FLSTSB |
| Harley-Davidson | 2018–2020 | Deluxe FLDE |
| Harley-Davidson | 2017 | Deluxe FLSTN |
| Harley-Davidson | 2018–2024 | Fat Bob 114 FXFBS |
| Harley-Davidson | 2018–2020 | Fat Bob FXFB |
| Harley-Davidson | 2018 | Fat Boy 114 Anniversary FLFBS |
| Harley-Davidson | 2020 | Fat Boy 114 Anniversary FLFBSANV |
| Harley-Davidson | 2018–2024 | Fat Boy 114 FLFBS |
| Harley-Davidson | 2023 | Fat Boy Anniversary FLFBSANV |
| Harley-Davidson | 2018–2020 | Fat Boy FLFB |
| Harley-Davidson | 2008–2017 | Fat Boy FLSTF |
| Harley-Davidson | 2012–2015 | Fat Boy FLSTF 103 |
| Harley-Davidson | 2013 | Fat Boy Lo Anv FLSTFB |
| Harley-Davidson | 2013 | Fat Boy Lo Anv FLSTFB 103 |
| Harley-Davidson | 2010–2017 | Fat Boy Lo FLSTFB |
| Harley-Davidson | 2012–2015 | Fat Boy Lo FLSTFB 103 |
| Harley-Davidson | 2019–2020 | FXDR 114 FXDRS |
| Harley-Davidson | 2018 | Heritage Classic 114 Anniversary FLHCS |
| Harley-Davidson | 2018–2024 | Heritage Classic 114 FLHCS |
| Harley-Davidson | 2023 | Heritage Classic Anniversary FLHCSANV |
| Harley-Davidson | 2018–2021 | Heritage Classic FLHC |
| Harley-Davidson | 2013 | Heritage Softail Classic Anv FLSTC |
| Harley-Davidson | 2013 | Heritage Softail Classic Anv FLSTC 103 |
| Harley-Davidson | 2008–2017 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 2012–2015 | Heritage Softail Classic FLSTC 103 |
| Harley-Davidson | 2008–2010 | Heritage Softail FLST |
| Harley-Davidson | 2024 | Hydra-Glide Revival FLI |
| Harley-Davidson | 2022 | Low Rider El Diablo FXRST |
| Harley-Davidson | 2018–2020 | Low Rider FXLR |
| Harley-Davidson | 2020–2024 | Low Rider S FXLRS |
| Harley-Davidson | 2022–2024 | Low Rider ST FXLRST |
| Harley-Davidson | 2008–2009 | Night Train FXSTB |
| Harley-Davidson | 2008–2011 | Rocker C FXCWC |
| Harley-Davidson | 2008–2009 | Rocker FXCW |
| Harley-Davidson | 2017 | Slim FLS |
| Harley-Davidson | 2018–2021 | Slim FLSL |
| Harley-Davidson | 2013–2016 | Softail Breakout FXSB |
| Harley-Davidson | 2013–2015 | Softail Breakout FXSB 103 |
| Harley-Davidson | 2008–2010 | Softail Custom FXSTC |
| Harley-Davidson | 2008–2016 | Softail Deluxe FLSTN |
| Harley-Davidson | 2012–2015 | Softail Deluxe FLSTN 103 |
| Harley-Davidson | 2012–2016 | Softail Slim FLS |
| Harley-Davidson | 2012–2015 | Softail Slim FLS 103 |
| Harley-Davidson | 2019–2020 | Softail Slim FLSL |
| Harley-Davidson | 2008–2024 | Softail Standard FXST |
| Harley-Davidson | 2018–2024 | Sport Glide FLSB |
| Harley-Davidson | 2021–2024 | Street Bob 114 FXBBS |
| Harley-Davidson | 2018–2020 | Street Bob FXBB |
Touring 42 models
Trike 11 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2025 | Freewheeler FLRT |
| Harley-Davidson | 2015–2024 | Freewheeler FLRT |
| Harley-Davidson | 2025 | Road Glide 3 FLTRT |
| Harley-Davidson | 2023–2024 | Road Glide 3 FLTRT |
| Harley-Davidson | 2010–2011 | Street Glide Trike FLHXXX |
| Harley-Davidson | 2025 | Tri Glide ULTRA FLHTCUTG |
| Harley-Davidson | 2018 | Tri Glide Ultra Anniversary FLHTCUTG |
| Harley-Davidson | 2023 | Tri Glide Ultra Anniversary FLHTCUTGANV |
| Harley-Davidson | 2013 | Tri Glide Ultra Classic Anv FLHTCUTG |
| Harley-Davidson | 2009–2016 | Tri Glide Ultra Classic FLHTCUTG |
| Harley-Davidson | 2017–2024 | Tri Glide Ultra FLHTCUTG |
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