2M4941010 3-7/8" chr/moly piston ring set. +.010"
Fits: 99-06Twin Cam A/B with 1550CC (95")…
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Specifications
- Brand
- Hastings
- Part Number
- 2M4941010
- OEM Reference
- 21945-99
- Pack Quantity
- Sold as pr
- Category
- Piston Rings
- VAT Rate
- 20%
About This Product
These Hastings chrome moly piston rings are engineered for 3-7/8 inch bore Twin Cam engines requiring a plus .010 inch oversize. This set is compatible with 1999 to 2006 models running the 95-inch big bore kit and 2007 to 2017 103-inch factory engines. Sold as a pair, they are a direct replacement for OEM 21945-99. The kit features 1.5mm compression rings and a 2.5mm oil ring, utilizing Hastings' proven flex vent technology for the oil control ring. Whether you are cleaning up worn cylinders or performing a top-end refresh, these rings provide the durability and sealing performance required for high-displacement Harley-Davidson powerplants.
Manufacturer part number: 2M4941010.
Fitment
78 models99-06Twin Cam A/B with 1550CC (95") Big Bore; 07-17 Twin Cam 103" engine
CVO/Custom 15 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2004 | CVO Electra Glide FLHTCSE |
| Harley-Davidson | 2005 | CVO Electra Glide FLHTCSE2 |
| Harley-Davidson | 2005 | CVO Fat Boy FLSTFSE |
| Harley-Davidson | 2006 | CVO Fat Boy FLSTFSE2 |
| Harley-Davidson | 2000 | CVO Road Glide FLTRSEI |
| Harley-Davidson | 2001 | CVO Road Glide FLTRSEI2 |
| Harley-Davidson | 2014 | CVO Road King FLHR 103 |
| Harley-Davidson | 2002 | CVO Road King FLHRSEI |
| Harley-Davidson | 2003 | CVO Road King FLHRSEI2 |
| Harley-Davidson | 2003 | CVO Softail Deuce FXSTDSE |
| Harley-Davidson | 2004 | CVO Softail Deuce FXSTDSE2 |
| Harley-Davidson | 2013 | CVO Ultra Classic Anv FLHTCU8 103 |
| Harley-Davidson | 2013 | CVO Ultra Classic FLHTCU8 103 |
| Harley-Davidson | 2006 | CVO Ultra Classic FLHTCUSE |
| Harley-Davidson | 2014 | Road King FLHR |
Dyna 11 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2012–2017 | Dyna Fat Bob FXDF 103 |
| Harley-Davidson | 2014–2017 | Dyna Low Rider FXDL 103 |
| Harley-Davidson | 2014–2017 | Dyna Street Bob FXDB 103 |
| Harley-Davidson | 2013 | Dyna Street Bob FXDBA 103 |
| 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 103 |
| Harley-Davidson | 2014 | Dyna Super Glide Custom FXDC 103 |
| Harley-Davidson | 2012–2016 | Dyna Switchback FLD 103 |
| Harley-Davidson | 2012–2017 | Dyna Wide Glide FXDWG 103 |
| Harley-Davidson | 2017 | Low Rider FXDL 103 |
Police 3 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2007–2016 | Electra Glide Standard Police FLHTP |
| Harley-Davidson | 2007–2016 | Road King Police FLHP |
| Harley-Davidson | 2007–2011 | Road King Police FLHPE |
Softail 20 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2012–2013 | Blackline FXS 103 |
| Harley-Davidson | 2017 | Breakout FXSB |
| Harley-Davidson | 2017 | Deluxe FLSTN |
| Harley-Davidson | 2016–2017 | Fat Boy FLSTF |
| Harley-Davidson | 2012–2015 | Fat Boy FLSTF 103 |
| Harley-Davidson | 2005 | Fat Boy FLSTFI |
| Harley-Davidson | 2013 | Fat Boy Lo Anv FLSTFB 103 |
| Harley-Davidson | 2016–2017 | Fat Boy Lo FLSTFB |
| Harley-Davidson | 2012–2015 | Fat Boy Lo FLSTFB 103 |
| Harley-Davidson | 2013 | Heritage Softail Classic Anv FLSTC 103 |
| Harley-Davidson | 2016–2017 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 2012–2015 | Heritage Softail Classic FLSTC 103 |
| Harley-Davidson | 2017 | Slim FLS |
| Harley-Davidson | 2016 | Softail Breakout FXSB |
| Harley-Davidson | 2013–2015 | Softail Breakout FXSB 103 |
| Harley-Davidson | 2016 | Softail Deluxe FLSTN |
| Harley-Davidson | 2012–2015 | Softail Deluxe FLSTN 103 |
| Harley-Davidson | 2016 | Softail Slim FLS |
| Harley-Davidson | 2012–2015 | Softail Slim FLS 103 |
| Harley-Davidson | 2012–2015 | Softail Standard FXST |
Touring 25 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2014 | CVO Limited FLHTK 103 |
| Harley-Davidson | 2012–2013 | Electra Glide Classic FLHTC |
| Harley-Davidson | 2011 | Electra Glide Classic FLHTC 103 |
| Harley-Davidson | 2013 | Electra Glide Ultra Limited Anv FLHTK |
| Harley-Davidson | 2010–2013 | Electra Glide Ultra Limited FLHTK |
| Harley-Davidson | 2012–2013 | Road Glide Custom FLTRX |
| Harley-Davidson | 2011 | Road Glide Custom FLTRX 103 |
| Harley-Davidson | 2015–2016 | Road Glide FLTRX |
| Harley-Davidson | 2015–2016 | Road Glide Special FLTRXS |
| Harley-Davidson | 2011–2016 | Road Glide Ultra FLTRU |
| Harley-Davidson | 2013 | Road King Anv FLHR |
| Harley-Davidson | 2012–2016 | Road King Classic FLHRC |
| Harley-Davidson | 2011 | Road King Classic FLHRC 103 |
| Harley-Davidson | 2012–2016 | Road King FLHR |
| Harley-Davidson | 2011 | Road King FLHR 103 |
| Harley-Davidson | 2012–2016 | Street Glide FLHX |
| Harley-Davidson | 2011 | Street Glide FLHX 103 |
| Harley-Davidson | 2014–2016 | Street Glide Special FLHXS |
| Harley-Davidson | 2012–2016 | Ultra Classic FLHTCU |
| Harley-Davidson | 2011 | Ultra Classic FLHTCU 103 |
| Harley-Davidson | 2015–2016 | Ultra Classic Low FLHTCUL |
| Harley-Davidson | 2015–2016 | Ultra Classic Low Twin-Cooled FLHTCUL |
| Harley-Davidson | 2014–2016 | Ultra Classic Twin-Cooled FLHTCU |
| Harley-Davidson | 2014–2016 | Ultra Limited FLHTK |
| Harley-Davidson | 2015–2016 | Ultra Limited Low FLHTKL |
Trike 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2015–2016 | Freewheeler FLRT |
| Harley-Davidson | 2010–2011 | Street Glide Trike FLHXXX |
| Harley-Davidson | 2013 | Tri Glide Ultra Classic Anv FLHTCUTG |
| Harley-Davidson | 2009–2016 | Tri Glide Ultra Classic FLHTCUTG |
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