In stock

S&S Cycle 131" Hot Set Up® — 4-5/8" Stroke — Wrinkle Black w/Highlight — M8

S&S Cycle · #0904-0262 · Complete Engines & Rebuild Kits / Engine

Updated profile eliminates frame and lifter block clearance issues
Original engine serial numbers are retained
Powder coat finish matches factory finishes
Retains stock engine height
Includes 131" cam cover badge

$2695.95

In stock. Ships in 2–4 business days · free shipping over $150.

Can’t ship to California.

Questions? Call the shop: 801-361-3010

Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014

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Description & features10 features

Kit Includes:

• 2x Wrinkle Black Cylinders with Highlighted Silver Cooling Fins

• 2x Flat-Top Forged Piston Kits

• Top-End Gaskets (Steal Head Gaskets and Rubber Base Seals)

• 131" Milwaukee Eight Cam Cover Badge

Updated profile eliminates frame and lifter block clearance issues
Original engine serial numbers are retained
Powder coat finish matches factory finishes
Retains stock engine height
Includes 131" cam cover badge
Bolts in with no machine work for '17-'25 Touring models equipped with standard factory 114" or 117" M8 engines that feature 4-5/8" stroke from the factory.
Requires crankcase split and component upgrades to fit '17-'25 M8 Touring 107" models and '18-'25 Softail models.
Specifically engineered for a 4-5/8" stroke. Must be paired with an aftermarket 4-5/8" stroker flywheel assembly to achieve 131" displacement on 107" and Softail models.
Works with stock crankcases: Cylinder spigots are designed to slide into the original factory cases.
Cylinders and pistons kit only, flywheel sold separately.

Specifications11 specs

Type: Engine
Displacement: 131"
Model: Hot Set Up®
Riding Style: Street
Stroke Length: 4.625"
Bore Size: 4.250"
Color/Finish: Highlighted Fins, Wrinkle Black
Compression Ratio: 11.0:1
Units: Kit
Shipping weight: 0.01 lb
Country of origin: USA

Fitment58 models · Harley-Davidson

Harley-Davidson58 models

Electra Glide Police FLHTPI2020, 2022–2025
Electra Glide Police FLHTP2025
FLDE Deluxe 1072018–2020
FLFB Fat Boy 1072018–2020
FLFB Fat Boy 1172025
FLFBS Fat Boy 1142018–2024
FLH Electra Glide Revival2021
FLHC Heritage Classic 1072018–2021
FLHCS Heritage Classic 1142018–2024
FLHFB Electra Glide Highway King2023
FLHR Road King2017–2022
FLHRC Road King Classic2019
FLHRXS Road King Special2017–2025
FLHT Electra Glide Standard2019–2022
FLHTCU Electra Glide Ultra Classic2017–2019
FLHTCUTG Tri Glide Ultra2017–2025
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 Glide2017–2025
FLHXST Street Glide ST2022–2023
FLHXU Street Glide Ultra2025
FLI Hydra-Glide Revival2024
FLRT Freewheeler2017–2025
FLSB Sport Glide 1072018–2021, 2024
FLSL Softail Slim 1072018–2021
FLSTFI Fat Boy Gray Ghost2025
FLTRK Road Glide Limited2020–2024
FLTRKSE CVO Road Glide Limited2022
FLTRT Road Glide 32023–2025
FLTRU Road Glide Ultra2017–2019
FLTRX Road Glide2017–2025
FLTRXRRSE CVO Road Glide RR2025
FLTRXS Road Glide Special2017–2023
FLTRXSE CVO Road Glide2018–2025
FLTRXST Road Glide ST2022–2023
FLTRXSTSE CVO Road Glide ST2024–2025
FXBB Street Bob 1072018–2020
FXBB Street Bob 1172025
FXBBS Street Bob 1142021–2024
FXBR Breakout 1072018–2019
FXBR Breakout 1172024–2025
FXBRS Breakout 1142018
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 1172022–2025
FXLRST Low Rider ST 1172022–2025
FXRST Low Rider El Diablo 1172022
FXST Softail Standard 1072020–2024
Road Glide Police FLTRXP2024–2025
Road King Police FLHP2019–2020, 2022–2025
Softail Low Rider ST FXLRST2025

Fitment comes from the catalog data for this part. 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 #: 0904-0262
S&S Cycle part #: 320-0621

Shipping

In stock. Ships in 2–4 business days by ground.

Ground shipping is $14.95, free on orders over $150. Stock is checked again before your card is charged.

California: this part can’t ship to a California address.

Questions4 answers

Is it in stock?: Yes — it’s in stock 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?: It’s listed 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 S&S Cycle?: Yes. It’s new and genuine, straight from Salto — S&S Cycle part #320-0621.