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HZ Fully Assembled GX390 Cylinder Head Kit for Honda GX340 GX390 Engine
✅ In stock
⭐ Lowest price we've tracked
D
Grade
Analysis Confidence
90%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 17, 2026 12:31 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
😐 Weak Deal- 😐Verdict: Weak Deal. Marginal discount. Prices may drop further soon.
- 💰The price is modestly below what this product ordinarily sells for.
- 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
4.01/28
Recent Value
0/22
Market Standing
4.74/20
Deal Strength
20/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Hzpart
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓This is the most complete GX390 cylinder head kit, GX340 cylinder head kit. Contains head, valve cover, valves,rockers,push rods, valve spring,spark plug,insulator, head gasket, valve cover gasket, carburetor gasket set, muffler gasket, all bolts and nuts and others as picture.All you need for cylinder head rebuild are involved. Replaces Honda 390 340 engine head part number 12200-ZF6-406,12200ZF6406,12200-ZF6-W00,122A0-ZE3-010, 12200ZF6W00,12210-Z5T-416, 12391-ZE2-000, 12210Z5T416
✓Ready-to-use GX390 cylinder head assembly for Honda GX340 GX390 GX420 and many other Honda clone 337cc 338cc 340cc 389cc 390cc 420cc 439cc 457cc 458cc 459cc 11Hp 13Hp 14Hp 15hp 16hp engines, 4200 psi and 4400 psi pressure washer, air compressor and many other applicaiton, like 5500 6500 6800 7500 8750 9000 9250 generators powered by these Honda clone engines.
✓Replaces Honda GX 390 head assembly or GX 340 head assembly.Fits many power equipment with Honda GX 340 GX 390 11 hp 13 hp engine, including WT40 series water pump,4200psi 4400 psi pressure washer generator EC6500 EB5000X EB6500X EG5000 EG5000X EG5000CX EG5000CL EG6500 EG6500CL EG6500CXS EM5000SX EB6500 EM6500 EM6500SX EM7000is EW171 EW171K1 EXW171S EZ6500 and more.
✓Fully assembled GX390 13hp cylinder head, GX340 11hp cylinder head to save your time and energy Even the spark plug and muffler studs are factory-assembled.. It is the best replacement on the market for Honda GX390 head assembly and Honda GX340 head assembly.
✓Come together with 2 feeler gauges helpling you set both intake valve clearance and exhaust valve clearance precisely and easily.This is the important premise for your motor to run at peak performance with lowest fuel consumpiton. Other cylinder heads from the market don't provide the convenience.
✓Replaces 389cc cylinder head assembly, 420cc cylinder head assembly, 439cc cylinder head assembly , 458cc cylinder head assembly for many GX 340 GX390 clone engine and Chinese 182F 188F 190F 192F small engines.
⚙️ Specifications
7.2 x 7 x 6.5 inches
6.2 pounds
HZ
B0BFXGX1H6
HD390
4.4
Product Dimensions
7.2 x 7 x 6.5 inches
Item Weight
6.2 pounds
Manufacturer
HZ
ASIN
B0BFXGX1H6
Item model number
HD390
Customer Reviews
4.4
Best Sellers Rank
See Top 100 in Automotive