What EH22664 Actually Is
This is a straight run of 4-inch inside-diameter silicone coolant hose, cut to a 36-inch stick. Four plies of reinforcing fabric are cured into the wall, which is what keeps a hose this large from collapsing under suction on the pump side or ballooning under pressure at the top tank. You cut it to the length your run needs.
Stick hose is used where a molded elbow is not required: radiator to surge tank, charge-side coolant plumbing, cab heater feed runs on long-nose trucks, and any repair where the original hose was a straight section clamped at both ends. Because it ships uncut, one stick can cover more than one repair on the same truck.
Silicone is the reason this part exists as an upgrade over EPDM rubber. It does not harden and check the way rubber does after repeated heat cycles, and it holds up better to long idle hours and high underhood temperatures. It is not oil-resistant, so keep it out of any line that sees fuel or lube.
Why These Numbers Cross
D1030-2852 and D10302852 are the same number written two ways. One carries the dash the supplier prints on the packaging and tags, the other is the flattened string used in dealer and fleet systems that strip punctuation. If your search for one comes up empty, search the other before you assume the part is discontinued.
EH22664 is the PartStop number for the aftermarket equivalent of that hose: same 4-inch ID, same straight configuration, same 3-foot stick length, 4-ply construction. The cross is built on physical dimensions and construction, not on a licensing arrangement. We are not affiliated with or authorized by any original-equipment manufacturer, and those numbers appear here only so you can identify the part.
Because this is straight stick hose rather than a molded shape, the cross is more forgiving than it would be for an elbow. What has to match is inside diameter and wall construction. Length is whatever you cut. Still confirm the ID on the old hose with a caliper or by measuring the neck it slips over before you order.
Checks Before You Order
Measure the hose neck outside diameter, not the old hose. A collapsed or swollen hose lies to you. A 4-inch ID silicone hose is meant to slide onto a 4-inch nominal neck with a light interference fit and be clamped with a constant-torque or T-bolt clamp. Worm-gear clamps will cut into silicone under repeated heat cycling.
Look at why the old hose failed. Soft spots and a chalky inner wall mean age and heat. A hose sucked flat on the suction side means the reinforcement gave up or the radiator cap and deaeration tank are not venting. Oil swelling means silicone is the wrong material for that line and you have a bigger leak to find.
EH22664 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to EH22664. Use them to identify the part — then confirm the exact fit by VIN or the number stamped on your old unit before you order. An interchange is a starting point, not a fitment guarantee.
| Brand / Line | Cross-Reference Numbers |
|---|---|
| OE/Cross-Ref | D1030-2852, D10302852 |
Frequently asked questions
Is D1030-2852 the same as D10302852?
Yes. Same number, one with a dash and one without. Parts systems handle punctuation differently, so the same hose shows up both ways depending on which catalog or invoice you are reading. Search both formats before concluding a number is dead.
Will EH22664 fit my Kenworth or Peterbilt?
This hose is listed against Kenworth and Peterbilt applications, but a cross-reference is a starting point, not a fitment guarantee. Confirm by the number on the old hose or by running your VIN before ordering. Also verify the neck diameter physically, since coolant plumbing varies by engine and radiator package.
Can I use silicone hose on an oil or fuel line?
No. Silicone resists heat and coolant well but swells and degrades when exposed to petroleum products. Use it for coolant and air only. If the old hose was oil-soaked, find the leak first, then spec the correct material for that line.
Not sure it fits? We check before you pay.
Run your VIN and we’ll match parts to your exact truck, or call the counter — a person who knows trucks verifies fitment by OEM number before the order ships. No wrong-box returns.
More cross-reference guides
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Every part below is a Premium Quality aftermarket Direct Replacement with published OEM cross-reference numbers, a 6+ month warranty and same-business-day shipping from Tacoma, WA. Not sure it fits? Run your VIN — or call and a person who knows trucks will verify fitment before you pay.