In warehouse stock
Feuling Parts Cam — 521 Series — Chain Drive — M8
- Aggressive pulling power with a “nasty” sound, the Reaper 521 grind will shine in 114” and larger cubic inch engines with added compression ratio
- Ported cylinder heads are not required, but will complement the cam and add even more pulling power throughout the range
- Stock throttle body produces an excellent powerband; use of a high-flow throttle body may increase peak power numbers
- A high-flow exhaust system and air cleaner is highly recommended for optimal performance
- Rpm range 2250-6250
$319.95
In stock. Ships in 2–4 business days · free shipping over $150.
Can’t ship to California.
View cart & check out →
Questions? Call the shop: 801-361-3010
Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014
Description & features10 features
Not for '23-'26 models with VVT motors.
- Aggressive pulling power with a “nasty” sound, the Reaper 521 grind will shine in 114” and larger cubic inch engines with added compression ratio
- Ported cylinder heads are not required, but will complement the cam and add even more pulling power throughout the range
- Stock throttle body produces an excellent powerband; use of a high-flow throttle body may increase peak power numbers
- A high-flow exhaust system and air cleaner is highly recommended for optimal performance
- Rpm range 2250-6250
- Made in the USA
- Cam specs measured in the engine on the lifter @ 0.050 using a 1.61 rocker arm ratio.
- Feuling recommends matching 521 cam with Race Series oiling system.
- Requires high lift springs on Gen 1 engines.
- Heavy-duty one-piece pushrods are also highly recommended.
Specifications21 specs
- Exhaust Duration
- 243°
- Exhaust Open
- 51.5°
- Intake Open
- 17°
- Units
- Each
- Intake Lobe Centerline
- 98.5°
- Riding Style
- Street
- Application
- Intake, Exhaust
- Intake Duration
- 231°
- Exhaust Lift
- 0.521"
- Intake Lift at TDC
- 0.162"
- Intake Close
- 34°
- Type
- Chain
- Exhaust Lobe Centerline
- 110°
- Grind
- 521 Series
- Exhaust Close
- 11.5°
- Exhaust Lift at TDC
- 0.125"
- Intake Lift
- 0.518"
- Model
- Reaper
- Shipping weight
- 1.9 lb
- Package size
- 6.2 × 3.4 × 3.3 in
- Country of origin
- USA
Fitment58 models · Harley-Davidson
Harley-Davidson58 models
- Electra Glide Police FLHTPI2017–2025
- FLDE Deluxe 1072018–2020
- FLFB Fat Boy 1072018–2020
- FLFB Fat Boy 1172025–2026
- FLFBS Fat Boy 1142018–2024
- FLH Electra Glide Revival2021
- FLHC Heritage Classic 1072018–2021
- FLHC Heritage Classic 1172025–2026
- FLHCS Heritage Classic 1142018–2024
- FLHFB Electra Glide Highway King2023
- FLHR Road King2017–2022
- FLHRXS Road King Special2017–2025
- FLHT Electra Glide Standard2019–2022
- FLHTCU Electra Glide Ultra Classic2017–2019
- FLHTCUTG Tri Glide Ultra2017–2024
- FLHTCUTGSE CVO Tri Glide2020–2022
- FLHTK Ultra Limited2017–2024
- FLHTKL Ultra Limited Low2017–2019
- FLHTKSE CVO Limited2017–2021
- FLHX Street Glide2017–2025
- FLHXS Street Glide Special2017–2023
- FLHXSE CVO Street Glide2017–2022
- FLHXST Street Glide ST2022–2023
- FLI Hydra-Glide Revival2024
- FLRT Freewheeler2017–2024
- FLSB Sport Glide 1072018–2024
- FLSL Softail Slim 1072018–2021
- FLSTFI Fat Boy Gray Ghost2025
- FLTRK Road Glide Limited2020–2024
- FLTRKSE CVO Road Glide Limited2022
- FLTRU Road Glide Ultra2017–2019
- FLTRX Road Glide2017–2025
- FLTRXS Road Glide Special2017–2023
- FLTRXSE CVO Road Glide2018–2023
- FLTRXST Road Glide ST2022–2023
- FLTRXSTSE CVO Road Glide ST2024
- FXBB Street Bob 1072018–2020
- FXBB Street Bob 1172025–2026
- FXBBS Street Bob 1142021–2024
- FXBR Breakout 1072018–2019
- FXBR Breakout 1172023–2026
- FXBRS Breakout 1142018–2020
- FXDRS FXDR 1142019–2020
- FXFB Fat Bob 1072018–2020
- FXFBS Fat Bob 1142018–2024
- FXLR Low Rider 1072018–2020
- FXLRS Low Rider S 1142020–2021
- FXLRS Low Rider S 1172022–2026
- FXLRST Low Rider ST 1172022–2026
- FXRST Low Rider El Diablo 1172022
- FXST Softail Standard 1072020–2024
- Road King Police FLHP2017–2025
- Softail Breakout FXBR2025
- Softail Fat Boy FLFB2025
- Softail Low Rider S FXLRS2025
- Softail Low Rider ST FXLRST2025
- Softail Street Bob FXBB2022, 2025
- Street Glide EFI FLHX2025
Fitment comes from the distributor’s catalog. Double-check your year, model and trim before you order — or call the counter at 801-361-3010 and we’ll check it with you.
Part numbers
- Salto part #
- 0925-1210
- Feuling Parts part #
- 1346
Shipping
In stock at a distributor warehouse. Ships in 2–4 business days by ground.
Ground shipping is $14.95, free on orders over $150. Stock is re-checked with the warehouse before your card is charged.
California: this part can’t ship to a California address.
Questions4 answers
- Is it in stock?
- Yes — the distributor shows it on a shelf at a regional warehouse right now. We check again the moment you order, before anything is charged.
- How fast will it get to me?
- Usually 2–4 business days by ground.
- Will it fit my machine?
- The distributor lists it for the models in the Fitment section above. Not sure about your trim or year? Call the counter at 801-361-3010 and we’ll check it with you.
- Is this genuine Feuling Parts?
- Yes. It ships new from the same distributors the big online stores buy from — Feuling Parts part #1346.
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