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Description
Hydraulic Safety Lever Lock 159-7744 for Caterpillar CAT Engine 3116 3306 3176C Excavator 307B 311B 312B 325B 365B 365BLPart Number: CA1597744, 159 7744, 1597744Application: Fit for Caterpillar Excavator: 307B, 311B, 312B, 312B L, 315B, 315B L, 317B L, 317B LN, 318B, 318B N, 320B, 320B L, 320B LL, 320B LU, 320B N, 320B S, 320B U, 322B, 322B L, 322B LN, 325B, 325B L, 325B LN, 330B, 330B L, 330B LN, 345B, 345B II, 345B L, 365B, 365B II, 365B L, 385B, M325B, W330B, W345B II, 5090B, 5110B Fit for Caterpillar Loader: 539
Part Number:
CA1597744, 159-7744, 1597744Application:
Fit for Caterpillar Excavator:307B, 311B, 312B, 312B L, 315B, 315B L, 317B L, 317B LN, 318B, 318B N, 320B, 320B L, 320B LL, 320B LU, 320B N, 320B S, 320B U, 322B, 322B L, 322B LN, 325B, 325B L, 325B LN, 330B, 330B L, 330B LN, 345B, 345B II, 345B L, 365B, 365B II, 365B L, 385B, M325B, W330B, W345B II, 5090B, 5110B
Fit for Caterpillar Loader:
539
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4.1 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
A reliable set of spark plugs.
They’re made in Germany, what else can you say
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Work as well as the NGK's
Bought for a 2016 Mazda 6, I had NGK's in it for 5 months and had misfires, didnt have the money to throw more NGK's at it for troubleshooting. Bought these to try and they work great so far.
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Reviewed in the United States on April 29, 2026
★★★★★ 4
Faulty plug? Otherwise great set
Definitely better than the old plugs that probably had 80k miles on them.
The one star off is because I had a misfire after installing. Not sure if I damaged the plug or what, but a reinstall didn't fix the misfire. In my genius, I rushed to try to gap it and ended up breaking the iridium tip. Put the old plug into cylinder 3 (where the misfire was) and it was fine.
Gonna have to get a new single tomorrow at my local shop, but a bit frustrating to get a misfire after install.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Upgrade from OEM
After seeing a quite ludicrous $403 quote to change 4 spark plugs in a Mazda3 I decided to show my son how easy it is.
These were an upgrade from OEM parts. They were gapped perfectly for the car.
They took 20mins to fit and work fine.
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Reviewed in the United States on February 11, 2026
★★★★★ 5
Very good
The best quality. Runs like new again.
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Reviewed in the United States on March 12, 2026