Home/All Cylinder Head Parts/4936724 / 3969722 Cummins ISC / ISL 8.3L Loaded Cylinder Head – New, Stage 1
4936724 Cummins ISC ISL 8.3 loaded cylinder head - new, JAK's Diesel
Cummins · Models: ISC / ISL / ISC 8.3

4936724 / 3969722 Cummins ISC / ISL 8.3L Loaded Cylinder Head – New, Stage 1

Commercial diesel cylinder head. Match the listed part and engine identifiers before ordering.
Warranty DetailsJAK's DieselMay Qualify for Free Freight
$1,749.00
In Stock
Fitment details

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Secure Checkout Review Return Policy Warranty Details May Qualify for Free Freight
JAK'S Part #JAKS-4936724
Not sure it's the right fit? Call a specialist
(720) 445-6249
Talk to a tech or text a photo of your part tag — we'll confirm fitment before you buy
4936724 / 3969722 Cummins ISC / ISL 8.3L Loaded Cylinder Head – New, Stage 1
BrandJAK's Diesel
Part CategoryCylinder Heads
Engine MakeCummins
Engine ModelISC · ISL · ISC 8.3
ConditionNew
Stage / TierStage 1

New, fully loaded upgraded cylinder head for the Cummins ISC and ISL 8.3L, built to replace Cummins 4936724 and 3969722. Standard intake and exhaust valves. It arrives assembled and ready to bolt on, with no core to send back.

What's Included

  • New cylinder head casting
  • New intake and exhaust valves (Stage 1 standard intake and exhaust)
  • New valve springs, retainers and keepers
  • Valve guides and valve stem seals installed

Not included: head gasket set, head bolts, injectors, rocker assemblies. Ask us and we will quote the matching gasket set and bolt kit.

Specifications

Replaces Cummins 4936724, 3969722
Engine Cummins ISC / ISL 8.3L
Condition New — no core
Assembly Loaded (valves, springs, retainers, keepers, guides, seals)
Valve package Stage 1 — standard intake and exhaust
Brand JAK's Diesel

Fitment

Fits Cummins ISC and ISL 8.3L engines that use the 4936724 / 3969722 head. For the 8.9L ISL9, see our ISC & ISL parts. We confirm fitment by engine serial number (ESN) or casting number before every head ships.

Replaces / Cross-Reference Part Numbers

OEM and reman numbers: 4936724, 3969722, A3969722MG

Shipping, Core & Warranty

  • No core charge, no core return. This is a new casting, not an exchange unit.
  • Freight: ships crated by LTL freight. Freight is free to a commercial address with a forklift or dock. Residential, liftgate and terminal delivery can be quoted — call before you order.
  • Local pickup: available in Henderson, CO by arrangement.
  • Warranty: 1 year against defects in materials and workmanship.

Frequently Asked Questions

Is this head new or remanufactured?

New. It is a new casting assembled with new valvetrain components — not a rebuilt core.

Do I have to send back a core?

No. There is no core charge and nothing to return.

What else do I need to install it?

Plan on a new head gasket set and head bolts for the ISC 8.3. They are not included. Message us and we will match the right kit to your engine serial number.

How do I confirm it fits my ISC 8.3?

Send us your engine serial number (ESN) or the casting number from your old head. We verify fitment against 4936724 before the head ships.

How long does delivery take?

Heads are crated and handed to the LTL carrier in 1–2 business days. Transit is typically 2–5 business days depending on your location.

Questions? Call JAK's Diesel at (720) 445-6249. See all Cummins ISC & ISL parts or diesel cylinder heads.