MC-RLY4 Starter relay. With diode
Fits: L93-99 Big Twin; TC; L93-04 XL Spor…
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Specifications
- Brand
- Standard
- Part Number
- MC-RLY4
- OEM Reference
- 31504-91A
- Pack Quantity
- Each
- Category
- Starter Relays
- VAT Rate
- 20%
About This Product
This starter relay from Standard features an integrated diode to protect your bike's sensitive electronics from voltage spikes. It is a versatile component that fits late 1993 to 1999 Big Twin models, Twin Cam models, and late 1993 to 2004 XL Sportster models. Replacing OEM 31504-91A, this relay is a common failure point that can leave you stranded if the internal contacts wear out or the coil fails. Standard builds these to withstand the vibrations and heat common in Harley-Davidson applications. Having a reliable relay is essential for consistent starting performance, and this unit provides a direct-fit solution that restores the integrity of your starting circuit without any modifications.
Manufacturer part number: MC-RLY4.
Fitment
78 modelsL93-99 Big Twin; TC; L93-04 XL Sportster
CVO/Custom 14 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999 | CVO Dyna Super Glide FXR2 |
| Harley-Davidson | 1999 | CVO Dyna Super Glide FXR3 |
| Harley-Davidson | 2000 | CVO Dyna Super Glide FXR4 |
| Harley-Davidson | 2004 | CVO Electra Glide FLHTCSE |
| Harley-Davidson | 2005 | CVO Electra Glide FLHTCSE2 |
| Harley-Davidson | 2000 | CVO Road Glide FLTRSEI |
| Harley-Davidson | 2001 | CVO Road Glide FLTRSEI2 |
| Harley-Davidson | 2007 | CVO Road King FLHRSE3 |
| Harley-Davidson | 2008 | CVO Road King FLHRSE4 |
| Harley-Davidson | 2002 | CVO Road King FLHRSEI |
| Harley-Davidson | 2003 | CVO Road King FLHRSEI2 |
| Harley-Davidson | 2006 | CVO Ultra Classic FLHTCUSE |
| Harley-Davidson | 2007 | CVO Ultra Classic FLHTCUSE2 |
| Harley-Davidson | 2008 | CVO Ultra Classic FLHTCUSE3 |
Dyna 6 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999 | Dyna Glide Convertible FXDS-CONV |
| Harley-Davidson | 1994–1999 | Dyna Low Rider FXDL |
| Harley-Davidson | 1995–1996 | Dyna Super Glide Convertible FXDS |
| Harley-Davidson | 1995–1999 | Dyna Super Glide FXD |
| Harley-Davidson | 1999 | Dyna Super Glide Sport FXDX |
| Harley-Davidson | 1994–1999 | Dyna Wide Glide FXDWG |
FXR 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1993 | FXR Sport FXRS-SP |
| Harley-Davidson | 2000 | FXR Super Glide FXR3 |
| Harley-Davidson | 1993 | Low Rider Sport Edition FXRS-SP |
| Harley-Davidson | 1993–1994 | Super Glide FXR |
| Harley-Davidson | 1993–1994 | Super Glide Low Rider FXLR |
FXR Police 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1995 | Police Low Rider FXRP |
| Harley-Davidson | 1992–1994 | Super Glide Police (Fairing) FXRP |
| Harley-Davidson | 1992 | Super Glide Police (Frg/Wnd) FXRP-FRG |
| Harley-Davidson | 1992 | Super Glide Police (Frg/Wnd) FXRP-WND |
| Harley-Davidson | 1992–1994 | Super Glide Police (Windshield) FXRP |
Police 9 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1992–1995 | Electra Glide Standard Police (Fairing) FLHTP |
| Harley-Davidson | 1992–1995 | Electra Glide Standard Police (Windshield) FLHTP |
| Harley-Davidson | 1996–2008 | Electra Glide Standard Police FLHTP |
| Harley-Davidson | 2002–2006 | Electra Glide Standard Police FLHTPI |
| Harley-Davidson | 2000 | Police Electra Glide FLHPE |
| Harley-Davidson | 2001–2006 | Road King Police Escort FLHPEI |
| Harley-Davidson | 1996–2008 | Road King Police FLHP |
| Harley-Davidson | 2007–2008 | Road King Police FLHPE |
| Harley-Davidson | 1996–2006 | Road King Police FLHPI |
Softail 9 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1993–1999 | Fat Boy FLSTF |
| Harley-Davidson | 1993–1999 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 1993–1996 | Heritage Softail Nostalgia FLSTN |
| Harley-Davidson | 1997–1999 | Heritage Springer FLSTS |
| Harley-Davidson | 1999 | Night Train FXSTB |
| Harley-Davidson | 1993–1999 | Softail Custom FXSTC |
| Harley-Davidson | 1999 | Softail Standard FXST |
| Harley-Davidson | 1993–1999 | Springer Softail FXSTS |
| Harley-Davidson | 1995–1997 | Springer Softail FXSTSB |
Sportster 8 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1996–2003 | Sportster 1200 Custom XL1200C |
| Harley-Davidson | 1996–2003 | Sportster 1200 Sport XL1200S |
| Harley-Davidson | 1993–2003 | Sportster 1200 XL1200 |
| Harley-Davidson | 1998–2003 | Sportster 883 Custom XL883C |
| Harley-Davidson | 1993–1995 | Sportster 883 Deluxe XL883DLX |
| Harley-Davidson | 1993–2003 | Sportster 883 Hugger XL883HUG |
| Harley-Davidson | 1993–2003 | Sportster 883 XL883 |
| Harley-Davidson | 2002–2003 | Sportster 883R XL883R |
Super Glide 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1994–1999 | Dyna Super Glide Convertible FXDS |
| Harley-Davidson | 1993 | Super Glide Convertible FXRS |
Touring 20 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1991–2008 | Electra Glide Classic FLHTC |
| Harley-Davidson | 1996–2006 | Electra Glide Classic FLHTCI |
| Harley-Davidson | 1993–1994 | Electra Glide Sport FLHS |
| Harley-Davidson | 1995–2008 | Electra Glide Standard FLHT |
| Harley-Davidson | 2003–2006 | Electra Glide Standard FLHTI |
| Harley-Davidson | 1998–2008 | Road Glide FLTR |
| Harley-Davidson | 1998–2006 | Road Glide FLTRI |
| Harley-Davidson | 2007–2008 | Road King Classic FLHRC |
| Harley-Davidson | 1998–2006 | Road King Classic FLHRCI |
| Harley-Davidson | 2004–2007 | Road King Custom FLHRS |
| Harley-Davidson | 2004–2006 | Road King Custom FLHRSI |
| Harley-Davidson | 1993–2008 | Road King FLHR |
| Harley-Davidson | 1996–2006 | Road King FLHRI |
| Harley-Davidson | 2006–2008 | Street Glide FLHX |
| Harley-Davidson | 2006 | Street Glide FLHXI |
| Harley-Davidson | 1991–1992 | Tour Glide Classic FLTC |
| Harley-Davidson | 1991–1995 | Tour Glide Ultra Classic FLTCU |
| Harley-Davidson | 1996 | Tour Glide Ultra Classic FLTCUI |
| Harley-Davidson | 1991–2008 | Ultra Classic FLHTCU |
| Harley-Davidson | 1995–2006 | Ultra Classic FLHTCUI |
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